25501297 has 4 divisors (see below), whose sum is σ = 25514496. Its totient is φ = 25488100.

The previous prime is 25501277. The next prime is 25501337. The reversal of 25501297 is 79210552.

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 25501297 - 2¹⁵ = 25468529 is a prime.

It is a super-2 number, since 2×25501297² = 1300632297364418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25501247) 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, 3073 + ... + 7774.

It is an arithmetic number, because the mean of its divisors is an integer number (6378624).

Almost surely, 2^25501297 is an apocalyptic number.

It is an amenable number.

25501297 is a deficient number, since it is larger than the sum of its proper divisors (13199).

25501297 is a wasteful number, since it uses less digits than its factorization.

25501297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13198.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 25501297 is about 5049.8808896844. The cubic root of 25501297 is about 294.3432560436.

The spelling of 25501297 in words is "twenty-five million, five hundred one thousand, two hundred ninety-seven".