25025002554 has 32 divisors (see below), whose sum is σ = 50337967680. Its totient is φ = 8293773312.

The previous prime is 25025002553. The next prime is 25025002559. The reversal of 25025002554 is 45520052052.

It is a super-3 number, since 3×25025002554³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25025002553) 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, 1035432 + ... + 1059324.

It is an arithmetic number, because the mean of its divisors is an integer number (1573061490).

Almost surely, 2^25025002554 is an apocalyptic number.

25025002554 is an abundant number, since it is smaller than the sum of its proper divisors (25312965126).

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

25025002554 is a wasteful number, since it uses less digits than its factorization.

25025002554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24894.

The product of its (nonzero) digits is 20000, while the sum is 30.

The spelling of 25025002554 in words is "twenty-five billion, twenty-five million, two thousand, five hundred fifty-four".