25057398660 has 48 divisors (see below), whose sum is σ = 80183677056. Its totient is φ = 5727405312.

The previous prime is 25057398631. The next prime is 25057398697. The reversal of 25057398660 is 6689375052.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 29829817 + ... + 29830656.

It is an arithmetic number, because the mean of its divisors is an integer number (1670493272).

Almost surely, 2^25057398660 is an apocalyptic number.

25057398660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25057398660 is an abundant number, since it is smaller than the sum of its proper divisors (55126278396).

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

25057398660 is a wasteful number, since it uses less digits than its factorization.

25057398660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59660492 (or 59660490 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 25057398660 in words is "twenty-five billion, fifty-seven million, three hundred ninety-eight thousand, six hundred sixty".