25314631 has 8 divisors (see below), whose sum is σ = 27507200. Its totient is φ = 23208120.

The previous prime is 25314629. The next prime is 25314637. The reversal of 25314631 is 13641352.

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

It is not a de Polignac number, because 25314631 - 2¹ = 25314629 is a prime.

It is a super-2 number, since 2×25314631² = 1281661085332322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25314596 and 25314605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25314637) 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, 20901 + ... + 22078.

It is an arithmetic number, because the mean of its divisors is an integer number (3438400).

Almost surely, 2^25314631 is an apocalyptic number.

25314631 is a deficient number, since it is larger than the sum of its proper divisors (2192569).

25314631 is a wasteful number, since it uses less digits than its factorization.

25314631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43029.

The product of its digits is 2160, while the sum is 25.

The square root of 25314631 is about 5031.3647254001. The cubic root of 25314631 is about 293.6233124445.

Adding to 25314631 its reverse (13641352), we get a palindrome (38955983).

It can be divided in two parts, 253 and 14631, that added together give a square (14884 = 122²).

The spelling of 25314631 in words is "twenty-five million, three hundred fourteen thousand, six hundred thirty-one".