25222973756 has 24 divisors (see below), whose sum is σ = 44239475280. Its totient is φ = 12583158912.

The previous prime is 25222973707. The next prime is 25222973813. The reversal of 25222973756 is 65737922252.

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, 3661091 + ... + 3667973.

It is an arithmetic number, because the mean of its divisors is an integer number (1843311470).

Almost surely, 2^25222973756 is an apocalyptic number.

It is an amenable number.

25222973756 is a deficient number, since it is larger than the sum of its proper divisors (19016501524).

25222973756 is a wasteful number, since it uses less digits than its factorization.

25222973756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8813 (or 8811 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 50.

The spelling of 25222973756 in words is "twenty-five billion, two hundred twenty-two million, nine hundred seventy-three thousand, seven hundred fifty-six".