25942554 has 24 divisors (see below), whose sum is σ = 61319232. Its totient is φ = 7861320.

The previous prime is 25942541. The next prime is 25942577. The reversal of 25942554 is 45524952.

It is a super-2 number, since 2×25942554² = 1346032216085832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65314 + ... + 65709.

It is an arithmetic number, because the mean of its divisors is an integer number (2554968).

Almost surely, 2^25942554 is an apocalyptic number.

25942554 is an abundant number, since it is smaller than the sum of its proper divisors (35376678).

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

25942554 is a wasteful number, since it uses less digits than its factorization.

25942554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131042 (or 131039 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 25942554 is about 5093.3833549027. The cubic root of 25942554 is about 296.0312619161.

The spelling of 25942554 in words is "twenty-five million, nine hundred forty-two thousand, five hundred fifty-four".