25934538 has 32 divisors (see below), whose sum is σ = 61194240. Its totient is φ = 7170480.

The previous prime is 25934533. The next prime is 25934551. The reversal of 25934538 is 83543952.

It is a super-2 number, since 2×25934538² = 1345200522546888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25934496 and 25934505.

It is not an unprimeable number, because it can be changed into a prime (25934533) 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, 8658 + ... + 11261.

It is an arithmetic number, because the mean of its divisors is an integer number (1912320).

Almost surely, 2^25934538 is an apocalyptic number.

25934538 is an abundant number, since it is smaller than the sum of its proper divisors (35259702).

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

25934538 is a wasteful number, since it uses less digits than its factorization.

25934538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19962.

The product of its digits is 129600, while the sum is 39.

The square root of 25934538 is about 5092.5963908403. The cubic root of 25934538 is about 296.0007685030. Note that the first 3 decimals are identical.

The spelling of 25934538 in words is "twenty-five million, nine hundred thirty-four thousand, five hundred thirty-eight".