25620465 has 64 divisors (see below), whose sum is σ = 46884096. Its totient is φ = 11860992.

The previous prime is 25620461. The next prime is 25620473. The reversal of 25620465 is 56402652.

It is not a de Polignac number, because 25620465 - 2² = 25620461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25620461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 382362 + ... + 382428.

It is an arithmetic number, because the mean of its divisors is an integer number (732564).

Almost surely, 2^25620465 is an apocalyptic number.

It is an amenable number.

25620465 is a deficient number, since it is larger than the sum of its proper divisors (21263631).

25620465 is a wasteful number, since it uses less digits than its factorization.

25620465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25620465 is about 5061.6662276369. Note that the first 3 decimals coincide. The cubic root of 25620465 is about 294.8010340821.

The spelling of 25620465 in words is "twenty-five million, six hundred twenty thousand, four hundred sixty-five".