25398872 has 32 divisors (see below), whose sum is σ = 49863600. Its totient is φ = 12115584.

The previous prime is 25398871. The next prime is 25398881. The reversal of 25398872 is 27889352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25398871) 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 7 ways as a sum of consecutive naturals, for example, 14879 + ... + 16497.

Almost surely, 2^25398872 is an apocalyptic number.

It is an amenable number.

25398872 is a deficient number, since it is larger than the sum of its proper divisors (24464728).

25398872 is a wasteful number, since it uses less digits than its factorization.

25398872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1711 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 25398872 is about 5039.7293578128. The cubic root of 25398872 is about 293.9486543988.

It can be divided in two parts, 2539 and 8872, that added together give a palindrome (11411).

The spelling of 25398872 in words is "twenty-five million, three hundred ninety-eight thousand, eight hundred seventy-two".