25138465 has 16 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 18179200.

The previous prime is 25138439. The next prime is 25138481. The reversal of 25138465 is 56483152.

It is not a de Polignac number, because 25138465 - 2¹⁷ = 25007393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25138465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9309 + ... + 11701.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^25138465 is an apocalyptic number.

It is an amenable number.

25138465 is a deficient number, since it is larger than the sum of its proper divisors (7956191).

25138465 is a wasteful number, since it uses less digits than its factorization.

25138465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600.

The product of its digits is 28800, while the sum is 34.

The square root of 25138465 is about 5013.8273803553. The cubic root of 25138465 is about 292.9406123934.

The spelling of 25138465 in words is "twenty-five million, one hundred thirty-eight thousand, four hundred sixty-five".