25645714530 has 16 divisors (see below), whose sum is σ = 61549714944. Its totient is φ = 6838857200.

The previous prime is 25645714517. The next prime is 25645714561. The reversal of 25645714530 is 3541754652.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427428546 + ... + 427428605.

It is an arithmetic number, because the mean of its divisors is an integer number (3846857184).

Almost surely, 2^25645714530 is an apocalyptic number.

25645714530 is an abundant number, since it is smaller than the sum of its proper divisors (35904000414).

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

25645714530 is a wasteful number, since it uses less digits than its factorization.

25645714530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854857161.

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 25645714530 in words is "twenty-five billion, six hundred forty-five million, seven hundred fourteen thousand, five hundred thirty".