25499252 has 12 divisors (see below), whose sum is σ = 47248740. Its totient is φ = 11999616.

The previous prime is 25499233. The next prime is 25499261. The reversal of 25499252 is 25299452.

It can be written as a sum of positive squares in 2 ways, for example, as 14182756 + 11316496 = 3766^2 + 3364^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187427 + ... + 187562.

It is an arithmetic number, because the mean of its divisors is an integer number (3937395).

Almost surely, 2^25499252 is an apocalyptic number.

It is an amenable number.

25499252 is a deficient number, since it is larger than the sum of its proper divisors (21749488).

25499252 is a wasteful number, since it uses less digits than its factorization.

25499252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375010 (or 375008 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 25499252 is about 5049.6784056017. The cubic root of 25499252 is about 294.3353878419.

The spelling of 25499252 in words is "twenty-five million, four hundred ninety-nine thousand, two hundred fifty-two".