25431967 has 8 divisors (see below), whose sum is σ = 27780480. Its totient is φ = 23089560.

The previous prime is 25431961. The next prime is 25431971. The reversal of 25431967 is 76913452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25431967 - 2¹¹ = 25429919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25431961) 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 7 ways as a sum of consecutive naturals, for example, 15534 + ... + 17092.

It is an arithmetic number, because the mean of its divisors is an integer number (3472560).

Almost surely, 2^25431967 is an apocalyptic number.

25431967 is a deficient number, since it is larger than the sum of its proper divisors (2348513).

25431967 is a wasteful number, since it uses less digits than its factorization.

25431967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053.

The product of its digits is 45360, while the sum is 37.

The square root of 25431967 is about 5043.0116993717. The cubic root of 25431967 is about 294.0762717256.

The spelling of 25431967 in words is "twenty-five million, four hundred thirty-one thousand, nine hundred sixty-seven".