25214565 has 16 divisors (see below), whose sum is σ = 40897728. Its totient is φ = 13262976.

The previous prime is 25214551. The next prime is 25214593. The reversal of 25214565 is 56541252.

It is not a de Polignac number, because 25214565 - 2⁸ = 25214309 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 10419 + ... + 12608.

It is an arithmetic number, because the mean of its divisors is an integer number (2556108).

Almost surely, 2^25214565 is an apocalyptic number.

It is an amenable number.

25214565 is a deficient number, since it is larger than the sum of its proper divisors (15683163).

25214565 is a wasteful number, since it uses less digits than its factorization.

25214565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23108.

The product of its digits is 12000, while the sum is 30.

The square root of 25214565 is about 5021.4106583708. The cubic root of 25214565 is about 293.2359144760.

The spelling of 25214565 in words is "twenty-five million, two hundred fourteen thousand, five hundred sixty-five".