25227499964 has 24 divisors (see below), whose sum is σ = 46837647360. Its totient is φ = 11855770416.

The previous prime is 25227499919. The next prime is 25227499981. The reversal of 25227499964 is 46999472252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1297202 + ... + 1316505.

It is an arithmetic number, because the mean of its divisors is an integer number (1951568640).

Almost surely, 2^25227499964 is an apocalyptic number.

It is an amenable number.

25227499964 is a deficient number, since it is larger than the sum of its proper divisors (21610147396).

25227499964 is a wasteful number, since it uses less digits than its factorization.

25227499964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613857 (or 2613855 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 59.

The spelling of 25227499964 in words is "twenty-five billion, two hundred twenty-seven million, four hundred ninety-nine thousand, nine hundred sixty-four".