25138852 has 24 divisors (see below), whose sum is σ = 46761624. Its totient is φ = 11784192.

The previous prime is 25138849. The next prime is 25138871. The reversal of 25138852 is 25883152.

It can be written as a sum of positive squares in 4 ways, for example, as 2328676 + 22810176 = 1526^2 + 4776^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 22368 + ... + 23464.

It is an arithmetic number, because the mean of its divisors is an integer number (1948401).

Almost surely, 2^25138852 is an apocalyptic number.

It is an amenable number.

25138852 is a deficient number, since it is larger than the sum of its proper divisors (21622772).

25138852 is a wasteful number, since it uses less digits than its factorization.

25138852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1453 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 25138852 is about 5013.8659734780. The cubic root of 25138852 is about 292.9421156333.

The spelling of 25138852 in words is "twenty-five million, one hundred thirty-eight thousand, eight hundred fifty-two".