25555002552 has 64 divisors (see below), whose sum is σ = 71304576000. Its totient is φ = 8480119392.

The previous prime is 25555002533. The next prime is 25555002553. The reversal of 25555002552 is 25520055552.

25555002552 is a `hidden beast` number, since 2 + 5 + 55 + 50 + 0 + 2 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555002553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217102 + ... + 313437.

It is an arithmetic number, because the mean of its divisors is an integer number (1114134000).

Almost surely, 2^25555002552 is an apocalyptic number.

It is an amenable number.

25555002552 is an abundant number, since it is smaller than the sum of its proper divisors (45749573448).

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

25555002552 is a wasteful number, since it uses less digits than its factorization.

25555002552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530777 (or 530767 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The spelling of 25555002552 in words is "twenty-five billion, five hundred fifty-five million, two thousand, five hundred fifty-two".