25097331 has 16 divisors (see below), whose sum is σ = 38361600. Its totient is φ = 14297088.

The previous prime is 25097323. The next prime is 25097333. The reversal of 25097331 is 13379052.

It is not a de Polignac number, because 25097331 - 2³ = 25097323 is a prime.

It is a super-2 number, since 2×25097331² = 1259752046647122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25097333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5875 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (2397600).

Almost surely, 2^25097331 is an apocalyptic number.

25097331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25097331 is a deficient number, since it is larger than the sum of its proper divisors (13264269).

25097331 is a wasteful number, since it uses less digits than its factorization.

25097331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 25097331 is about 5009.7236450727. The cubic root of 25097331 is about 292.7807458636.

The spelling of 25097331 in words is "twenty-five million, ninety-seven thousand, three hundred thirty-one".