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55200125425 = 5219971105661
BaseRepresentation
bin110011011010001011…
…110001000111110001
312021110222202220122211
4303122023301013301
51401022213003200
641205242132121
73662624216164
oct633213610761
9167428686584
1055200125425
1121457039275
12a8464b1041
1352891caa13
142959207adb
15168117caba
hexcda2f11f1

55200125425 has 12 divisors (see below), whose sum is σ = 68482492956. Its totient is φ = 44137947200.

The previous prime is 55200125413. The next prime is 55200125467. The reversal of 55200125425 is 52452100255.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 22481103969 + 32719021456 = 149937^2 + 180884^2 .

It is a de Polignac number, because none of the positive numbers 2k-55200125425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502906 + ... + 602755.

It is an arithmetic number, because the mean of its divisors is an integer number (5706874413).

Almost surely, 255200125425 is an apocalyptic number.

It is an amenable number.

55200125425 is a deficient number, since it is larger than the sum of its proper divisors (13282367531).

55200125425 is a wasteful number, since it uses less digits than its factorization.

55200125425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107668 (or 1107663 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

It can be divided in two parts, 55200 and 125425, that added together give a square (180625 = 4252).

The spelling of 55200125425 in words is "fifty-five billion, two hundred million, one hundred twenty-five thousand, four hundred twenty-five".

Divisors: 1 5 25 1997 9985 49925 1105661 5528305 27641525 2208005017 11040025085 55200125425