25330057788 has 48 divisors (see below), whose sum is σ = 68554997504. Its totient is φ = 7129140480.

The previous prime is 25330057763. The next prime is 25330057813. The reversal of 25330057788 is 88775003352.

It is an interprime number because it is at equal distance from previous prime (25330057763) and next prime (25330057813).

It is a super-2 number, since 2×25330057788² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2244733 + ... + 2255988.

Almost surely, 2^25330057788 is an apocalyptic number.

25330057788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25330057788 is an abundant number, since it is smaller than the sum of its proper divisors (43224939716).

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

25330057788 is a wasteful number, since it uses less digits than its factorization.

25330057788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500802 (or 4500800 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 25330057788 in words is "twenty-five billion, three hundred thirty million, fifty-seven thousand, seven hundred eighty-eight".