25632413 has 4 divisors (see below), whose sum is σ = 27140220. Its totient is φ = 24124608.

The previous prime is 25632407. The next prime is 25632457. The reversal of 25632413 is 31423652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 9966649 = 3958^2 + 3157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25632413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25632473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753878 + ... + 753911.

It is an arithmetic number, because the mean of its divisors is an integer number (6785055).

Almost surely, 2^25632413 is an apocalyptic number.

It is an amenable number.

25632413 is a deficient number, since it is larger than the sum of its proper divisors (1507807).

25632413 is a wasteful number, since it uses less digits than its factorization.

25632413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507806.

The product of its digits is 4320, while the sum is 26.

The square root of 25632413 is about 5062.8463338324. The cubic root of 25632413 is about 294.8468533828.

The spelling of 25632413 in words is "twenty-five million, six hundred thirty-two thousand, four hundred thirteen".