25223457672 has 160 divisors (see below), whose sum is σ = 80883601920. Its totient is φ = 7194044160.

The previous prime is 25223457653. The next prime is 25223457691. The reversal of 25223457672 is 27675432252.

25223457672 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 3 + 4 + 576 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (25223457653) and next prime (25223457691).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2748772 + ... + 2757932.

It is an arithmetic number, because the mean of its divisors is an integer number (505522512).

Almost surely, 2^25223457672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25223457672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40441800960).

25223457672 is an abundant number, since it is smaller than the sum of its proper divisors (55660144248).

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

25223457672 is a wasteful number, since it uses less digits than its factorization.

25223457672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9793 (or 9780 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 45.

The spelling of 25223457672 in words is "twenty-five billion, two hundred twenty-three million, four hundred fifty-seven thousand, six hundred seventy-two".