25231493 has 8 divisors (see below), whose sum is σ = 28879488. Its totient is φ = 21594384.

The previous prime is 25231477. The next prime is 25231499. The reversal of 25231493 is 39413252.

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

It is not a de Polignac number, because 25231493 - 2⁴ = 25231477 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 (25231499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3080 + ... + 7742.

It is an arithmetic number, because the mean of its divisors is an integer number (3609936).

Almost surely, 2^25231493 is an apocalyptic number.

It is an amenable number.

25231493 is a deficient number, since it is larger than the sum of its proper divisors (3647995).

25231493 is an equidigital number, since it uses as much as digits as its factorization.

25231493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443.

The product of its digits is 6480, while the sum is 29.

The square root of 25231493 is about 5023.0959576739. The cubic root of 25231493 is about 293.3015218888.

The spelling of 25231493 in words is "twenty-five million, two hundred thirty-one thousand, four hundred ninety-three".