25400252 has 6 divisors (see below), whose sum is σ = 44450448. Its totient is φ = 12700124.

The previous prime is 25400251. The next prime is 25400269. The reversal of 25400252 is 25200452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25400251) by changing a digit.

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 as a sum of consecutive naturals, namely, 3175028 + ... + 3175035.

It is an arithmetic number, because the mean of its divisors is an integer number (7408408).

Almost surely, 2^25400252 is an apocalyptic number.

It is an amenable number.

25400252 is a deficient number, since it is larger than the sum of its proper divisors (19050196).

25400252 is a wasteful number, since it uses less digits than its factorization.

25400252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350067 (or 6350065 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 25400252 is about 5039.8662680670. The cubic root of 25400252 is about 293.9539780184.

It can be divided in two parts, 25400 and 252, that added together give a palindrome (25652).

The spelling of 25400252 in words is "twenty-five million, four hundred thousand, two hundred fifty-two".