25632797 has 4 divisors (see below), whose sum is σ = 25643136. Its totient is φ = 25622460.

The previous prime is 25632751. The next prime is 25632799. The reversal of 25632797 is 79723652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25632797 - 2¹⁴ = 25616413 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 (25632799) 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, 1022 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (6410784).

Almost surely, 2^25632797 is an apocalyptic number.

It is an amenable number.

25632797 is a deficient number, since it is larger than the sum of its proper divisors (10339).

25632797 is an equidigital number, since it uses as much as digits as its factorization.

25632797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10338.

The product of its digits is 158760, while the sum is 41.

The square root of 25632797 is about 5062.8842570219. The cubic root of 25632797 is about 294.8483257455.

The spelling of 25632797 in words is "twenty-five million, six hundred thirty-two thousand, seven hundred ninety-seven".