25601065 has 24 divisors (see below), whose sum is σ = 37311552. Its totient is φ = 16515840.

The previous prime is 25601033. The next prime is 25601083. The reversal of 25601065 is 56010652.

It is not a de Polignac number, because 25601065 - 2⁵ = 25601033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8850 + ... + 11380.

It is an arithmetic number, because the mean of its divisors is an integer number (1554648).

Almost surely, 2^25601065 is an apocalyptic number.

It is an amenable number.

25601065 is a deficient number, since it is larger than the sum of its proper divisors (11710487).

25601065 is a wasteful number, since it uses less digits than its factorization.

25601065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25601065 is about 5059.7494997282. The cubic root of 25601065 is about 294.7266068070.

The spelling of 25601065 in words is "twenty-five million, six hundred one thousand, sixty-five".