25397011 has 4 divisors (see below), whose sum is σ = 26272800. Its totient is φ = 24521224.

The previous prime is 25397003. The next prime is 25397027. The reversal of 25397011 is 11079352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25397011 - 2³ = 25397003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25397041) 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 3 ways as a sum of consecutive naturals, for example, 437851 + ... + 437908.

It is an arithmetic number, because the mean of its divisors is an integer number (6568200).

Almost surely, 2^25397011 is an apocalyptic number.

25397011 is a deficient number, since it is larger than the sum of its proper divisors (875789).

25397011 is an equidigital number, since it uses as much as digits as its factorization.

25397011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875788.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 25397011 is about 5039.5447215001. The cubic root of 25397011 is about 293.9414749224.

The spelling of 25397011 in words is "twenty-five million, three hundred ninety-seven thousand, eleven".