25402452 has 24 divisors (see below), whose sum is σ = 60719232. Its totient is φ = 8260800.

The previous prime is 25402439. The next prime is 25402453. The reversal of 25402452 is 25420452.

It is a happy number.

It is a super-2 number, since 2×25402452² = 1290569135224608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25402453) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25324 + ... + 26307.

It is an arithmetic number, because the mean of its divisors is an integer number (2529968).

Almost surely, 2^25402452 is an apocalyptic number.

It is an amenable number.

25402452 is an abundant number, since it is smaller than the sum of its proper divisors (35316780).

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

25402452 is a wasteful number, since it uses less digits than its factorization.

25402452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51679 (or 51677 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 25402452 is about 5040.0845231008. The cubic root of 25402452 is about 293.9624645495.

The spelling of 25402452 in words is "twenty-five million, four hundred two thousand, four hundred fifty-two".