25455538 has 16 divisors (see below), whose sum is σ = 39214080. Its totient is φ = 12388896.

The previous prime is 25455517. The next prime is 25455571. The reversal of 25455538 is 83555452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25455497 and 25455506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10431 + ... + 12637.

It is an arithmetic number, because the mean of its divisors is an integer number (2450880).

Almost surely, 2^25455538 is an apocalyptic number.

25455538 is a deficient number, since it is larger than the sum of its proper divisors (13758542).

25455538 is a wasteful number, since it uses less digits than its factorization.

25455538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361.

The product of its digits is 120000, while the sum is 37.

The square root of 25455538 is about 5045.3481544884. The cubic root of 25455538 is about 294.1670961517.

The spelling of 25455538 in words is "twenty-five million, four hundred fifty-five thousand, five hundred thirty-eight".