25163041564 has 24 divisors (see below), whose sum is σ = 44385909120. Its totient is φ = 12481491696.

The previous prime is 25163041513. The next prime is 25163041567. The reversal of 25163041564 is 46514036152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25163041567) 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, 743499 + ... + 776605.

It is an arithmetic number, because the mean of its divisors is an integer number (1849412880).

Almost surely, 2^25163041564 is an apocalyptic number.

It is an amenable number.

25163041564 is a deficient number, since it is larger than the sum of its proper divisors (19222867556).

25163041564 is a wasteful number, since it uses less digits than its factorization.

25163041564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34617 (or 34615 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 25163041564 in words is "twenty-five billion, one hundred sixty-three million, forty-one thousand, five hundred sixty-four".