25415253 has 24 divisors (see below), whose sum is σ = 38975040. Its totient is φ = 15924480.

The previous prime is 25415251. The next prime is 25415303. The reversal of 25415253 is 35251452.

It is a happy number.

It is not a de Polignac number, because 25415253 - 2¹ = 25415251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25415251) 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 in 23 ways as a sum of consecutive naturals, for example, 11173 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (1623960).

Almost surely, 2^25415253 is an apocalyptic number.

25415253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25415253 is a deficient number, since it is larger than the sum of its proper divisors (13559787).

25415253 is a wasteful number, since it uses less digits than its factorization.

25415253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2166 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 25415253 is about 5041.3542823333. The cubic root of 25415253 is about 294.0118348700.

The spelling of 25415253 in words is "twenty-five million, four hundred fifteen thousand, two hundred fifty-three".