25630065 has 24 divisors (see below), whose sum is σ = 45158568. Its totient is φ = 13443840.

The previous prime is 25630061. The next prime is 25630079. The reversal of 25630065 is 56003652.

25630065 is a `hidden beast` number, since 25 + 630 + 0 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2214144 + 23415921 = 1488^2 + 4839^2 .

It is not a de Polignac number, because 25630065 - 2² = 25630061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25630061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1924 + ... + 7413.

It is an arithmetic number, because the mean of its divisors is an integer number (1881607).

Almost surely, 2^25630065 is an apocalyptic number.

It is an amenable number.

25630065 is a deficient number, since it is larger than the sum of its proper divisors (19528503).

25630065 is a wasteful number, since it uses less digits than its factorization.

25630065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9409 (or 9406 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 25630065 is about 5062.6144431509. The cubic root of 25630065 is about 294.8378501785.

The spelling of 25630065 in words is "twenty-five million, six hundred thirty thousand, sixty-five".