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25026112020 = 223572132967337
BaseRepresentation
bin10111010011101011…
…000010101000010100
32101121010001012202210
4113103223002220110
5402223141041040
615255152233420
71544112304500
oct272353025024
971533035683
1025026112020
11a682651408
124a2523b870
13248aa79910
1412d5a23300
159b712e480
hex5d3ac2a14

25026112020 has 576 divisors, whose sum is σ = 92439809280. Its totient is φ = 5007163392.

The previous prime is 25026111989. The next prime is 25026112073. The reversal of 25026112020 is 2021162052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 74261292 + ... + 74261628.

It is an arithmetic number, because the mean of its divisors is an integer number (160485780).

Almost surely, 225026112020 is an apocalyptic number.

25026112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25026112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46219904640).

25026112020 is an abundant number, since it is smaller than the sum of its proper divisors (67413697260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25026112020 is a wasteful number, since it uses less digits than its factorization.

25026112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 25026112020 its reverse (2021162052), we get a palindrome (27047274072).

The spelling of 25026112020 in words is "twenty-five billion, twenty-six million, one hundred twelve thousand, twenty".