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21352525201325 = 528310290373591
BaseRepresentation
bin1001101101011100001011…
…01011011111111110101101
32210121021121012020122111202
410312232011223133332231
510244314432422420300
6113225114211055245
74332445323366113
oct466560553377655
983537535218452
1021352525201325
1168926118a941a
12248a3195a1525
13bbb6c4362056
1453b679667ab3
152706651a8ad5
hex136b85adffad

21352525201325 has 12 divisors (see below), whose sum is σ = 26796132833568. Its totient is φ = 16876212687600.

The previous prime is 21352525201303. The next prime is 21352525201363. The reversal of 21352525201325 is 52310252525312.

It is not a de Polignac number, because 21352525201325 - 26 = 21352525201261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5145184721 + ... + 5145188870.

It is an arithmetic number, because the mean of its divisors is an integer number (2233011069464).

Almost surely, 221352525201325 is an apocalyptic number.

21352525201325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21352525201325 is a deficient number, since it is larger than the sum of its proper divisors (5443607632243).

21352525201325 is a wasteful number, since it uses less digits than its factorization.

21352525201325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10290373684 (or 10290373679 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 21352525201325 its reverse (52310252525312), we get a palindrome (73662777726637).

The spelling of 21352525201325 in words is "twenty-one trillion, three hundred fifty-two billion, five hundred twenty-five million, two hundred one thousand, three hundred twenty-five".

Divisors: 1 5 25 83 415 2075 10290373591 51451867955 257259339775 854101008053 4270505040265 21352525201325