25248997 has 4 divisors (see below), whose sum is σ = 25447936. Its totient is φ = 25050060.

The previous prime is 25248947. The next prime is 25249027. The reversal of 25248997 is 79984252.

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 25248997 - 2¹⁵ = 25216229 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 (25248947) 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, 99279 + ... + 99532.

It is an arithmetic number, because the mean of its divisors is an integer number (6361984).

Almost surely, 2^25248997 is an apocalyptic number.

It is an amenable number.

25248997 is a deficient number, since it is larger than the sum of its proper divisors (198939).

25248997 is a wasteful number, since it uses less digits than its factorization.

25248997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198938.

The product of its digits is 362880, while the sum is 46.

The square root of 25248997 is about 5024.8380073391. The cubic root of 25248997 is about 293.3693308382.

The spelling of 25248997 in words is "twenty-five million, two hundred forty-eight thousand, nine hundred ninety-seven".