25551297 has 12 divisors (see below), whose sum is σ = 36990720. Its totient is φ = 16995768.

The previous prime is 25551293. The next prime is 25551299. The reversal of 25551297 is 79215552.

25551297 is a `hidden beast` number, since 2 + 55 + 512 + 97 = 666.

It is not a de Polignac number, because 25551297 - 2² = 25551293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25551293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348 + ... + 7274.

It is an arithmetic number, because the mean of its divisors is an integer number (3082560).

Almost surely, 2^25551297 is an apocalyptic number.

It is an amenable number.

25551297 is a deficient number, since it is larger than the sum of its proper divisors (11439423).

25551297 is a wasteful number, since it uses less digits than its factorization.

25551297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6409 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 25551297 is about 5054.8290772290. The cubic root of 25551297 is about 294.5355018824.

The spelling of 25551297 in words is "twenty-five million, five hundred fifty-one thousand, two hundred ninety-seven".