25397245 has 16 divisors (see below), whose sum is σ = 31414320. Its totient is φ = 19699200.

The previous prime is 25397231. The next prime is 25397257. The reversal of 25397245 is 54279352.

It can be written as a sum of positive squares in 8 ways, for example, as 527076 + 24870169 = 726^2 + 4987^2 .

It is not a de Polignac number, because 25397245 - 2⁹ = 25396733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46675 + ... + 47215.

It is an arithmetic number, because the mean of its divisors is an integer number (1963395).

Almost surely, 2^25397245 is an apocalyptic number.

It is an amenable number.

25397245 is a deficient number, since it is larger than the sum of its proper divisors (6017075).

25397245 is a wasteful number, since it uses less digits than its factorization.

25397245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its digits is 75600, while the sum is 37.

The square root of 25397245 is about 5039.5679378296. The cubic root of 25397245 is about 293.9423776808.

The spelling of 25397245 in words is "twenty-five million, three hundred ninety-seven thousand, two hundred forty-five".