25614531 has 12 divisors (see below), whose sum is σ = 37189152. Its totient is φ = 16988496.

The previous prime is 25614517. The next prime is 25614557. The reversal of 25614531 is 13541652.

It is not a de Polignac number, because 25614531 - 2⁷ = 25614403 is a prime.

It is a super-2 number, since 2×25614531² = 1312208396699922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25614495 and 25614504.

It is not an unprimeable number, because it can be changed into a prime (25614581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5451 + ... + 8996.

It is an arithmetic number, because the mean of its divisors is an integer number (3099096).

Almost surely, 2^25614531 is an apocalyptic number.

25614531 is a deficient number, since it is larger than the sum of its proper divisors (11574621).

25614531 is a wasteful number, since it uses less digits than its factorization.

25614531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14650 (or 14647 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 25614531 is about 5061.0800230781. The cubic root of 25614531 is about 294.7782725331.

The spelling of 25614531 in words is "twenty-five million, six hundred fourteen thousand, five hundred thirty-one".