25572291896 has 8 divisors (see below), whose sum is σ = 47948047320. Its totient is φ = 12786145944.

The previous prime is 25572291859. The next prime is 25572291907. The reversal of 25572291896 is 69819227552.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×25572291896² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598268236 + ... + 1598268251.

It is an arithmetic number, because the mean of its divisors is an integer number (5993505915).

Almost surely, 2^25572291896 is an apocalyptic number.

It is an amenable number.

25572291896 is a deficient number, since it is larger than the sum of its proper divisors (22375755424).

25572291896 is a wasteful number, since it uses less digits than its factorization.

25572291896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196536493 (or 3196536489 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 56.

The spelling of 25572291896 in words is "twenty-five billion, five hundred seventy-two million, two hundred ninety-one thousand, eight hundred ninety-six".