25139052 has 48 divisors (see below), whose sum is σ = 68611200. Its totient is φ = 7938000.

The previous prime is 25139017. The next prime is 25139053. The reversal of 25139052 is 25093152.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25139053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4074 + ... + 8177.

It is an arithmetic number, because the mean of its divisors is an integer number (1429400).

Almost surely, 2^25139052 is an apocalyptic number.

It is an amenable number.

25139052 is an abundant number, since it is smaller than the sum of its proper divisors (43472148).

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

25139052 is a wasteful number, since it uses less digits than its factorization.

25139052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12283 (or 12275 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 25139052 is about 5013.8859181278. The cubic root of 25139052 is about 292.9428924955.

The spelling of 25139052 in words is "twenty-five million, one hundred thirty-nine thousand, fifty-two".