25452977 has 4 divisors (see below), whose sum is σ = 27766896. Its totient is φ = 23139060.

The previous prime is 25452967. The next prime is 25453009. The reversal of 25452977 is 77925452.

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.

It is a cyclic number.

It is not a de Polignac number, because 25452977 - 2¹⁸ = 25190833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25452937) 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, 1156943 + ... + 1156964.

It is an arithmetic number, because the mean of its divisors is an integer number (6941724).

Almost surely, 2^25452977 is an apocalyptic number.

It is an amenable number.

25452977 is a deficient number, since it is larger than the sum of its proper divisors (2313919).

25452977 is a wasteful number, since it uses less digits than its factorization.

25452977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313918.

The product of its digits is 176400, while the sum is 41.

The square root of 25452977 is about 5045.0943499602. The cubic root of 25452977 is about 294.1572307516.

The spelling of 25452977 in words is "twenty-five million, four hundred fifty-two thousand, nine hundred seventy-seven".