25160400556 has 12 divisors (see below), whose sum is σ = 44420353992. Its totient is φ = 12468870848.

The previous prime is 25160400539. The next prime is 25160400593. The reversal of 25160400556 is 65500406152.

It is a super-2 number, since 2×25160400556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27831850 + ... + 27832753.

It is an arithmetic number, because the mean of its divisors is an integer number (3701696166).

Almost surely, 2^25160400556 is an apocalyptic number.

It is an amenable number.

25160400556 is a deficient number, since it is larger than the sum of its proper divisors (19259953436).

25160400556 is a wasteful number, since it uses less digits than its factorization.

25160400556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55664720 (or 55664718 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 25160400556 in words is "twenty-five billion, one hundred sixty million, four hundred thousand, five hundred fifty-six".