25560351530 has 128 divisors (see below), whose sum is σ = 56542593024. Its totient is φ = 8120448000.

The previous prime is 25560351511. The next prime is 25560351541. The reversal of 25560351530 is 3515306552.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24319505 + ... + 24320555.

It is an arithmetic number, because the mean of its divisors is an integer number (441739008).

Almost surely, 2^25560351530 is an apocalyptic number.

25560351530 is an abundant number, since it is smaller than the sum of its proper divisors (30982241494).

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

25560351530 is a wasteful number, since it uses less digits than its factorization.

25560351530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 25560351530 in words is "twenty-five billion, five hundred sixty million, three hundred fifty-one thousand, five hundred thirty".