25264861392 has 20 divisors (see below), whose sum is σ = 65267558720. Its totient is φ = 8421620448.

The previous prime is 25264861387. The next prime is 25264861403. The reversal of 25264861392 is 29316846252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 526351279 = 25264861392 / (2 + 5 + 2 + 6 + 4 + 8 + 6 + 1 + 3 + 9 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263175592 + ... + 263175687.

It is an arithmetic number, because the mean of its divisors is an integer number (3263377936).

Almost surely, 2^25264861392 is an apocalyptic number.

It is an amenable number.

25264861392 is an abundant number, since it is smaller than the sum of its proper divisors (40002697328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25264861392 is a wasteful number, since it uses less digits than its factorization.

25264861392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526351290 (or 526351284 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 25264861392 in words is "twenty-five billion, two hundred sixty-four million, eight hundred sixty-one thousand, three hundred ninety-two".