25013616 has 40 divisors (see below), whose sum is σ = 66126720. Its totient is φ = 8143296.

The previous prime is 25013587. The next prime is 25013617. The reversal of 25013616 is 61631052.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25013617) 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, 3996 + ... + 8123.

It is an arithmetic number, because the mean of its divisors is an integer number (1653168).

Almost surely, 2^25013616 is an apocalyptic number.

It is an amenable number.

25013616 is an abundant number, since it is smaller than the sum of its proper divisors (41113104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25013616 is a wasteful number, since it uses less digits than its factorization.

25013616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12173 (or 12167 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 25013616 is about 5001.3614146550. The cubic root of 25013616 is about 292.4548487542.

Adding to 25013616 its reverse (61631052), we get a palindrome (86644668).

The spelling of 25013616 in words is "twenty-five million, thirteen thousand, six hundred sixteen".