25322667634 has 16 divisors (see below), whose sum is σ = 42004726560. Its totient is φ = 11352627360.

The previous prime is 25322667619. The next prime is 25322667637. The reversal of 25322667634 is 43676622352.

It is a super-2 number, since 2×25322667634² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25322667637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7882164 + ... + 7885375.

It is an arithmetic number, because the mean of its divisors is an integer number (2625295410).

Almost surely, 2^25322667634 is an apocalyptic number.

25322667634 is a deficient number, since it is larger than the sum of its proper divisors (16682058926).

25322667634 is a wasteful number, since it uses less digits than its factorization.

25322667634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15767625.

The product of its digits is 2177280, while the sum is 46.

The spelling of 25322667634 in words is "twenty-five billion, three hundred twenty-two million, six hundred sixty-seven thousand, six hundred thirty-four".