25572423723840 has 168 divisors, whose sum is σ = 100523980003200. Its totient is φ = 5845125417984.

The previous prime is 25572423723779. The next prime is 25572423723853. The reversal of 25572423723840 is 4832732427552.

25572423723840 is a `hidden beast` number, since 2 + 5 + 5 + 7 + 24 + 237 + 2 + 384 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×25572423723840² (a number of 28 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 in 23 ways as a sum of consecutive naturals, for example, 634216540 + ... + 634256859.

Almost surely, 2^{25572423723840} is an apocalyptic number.

25572423723840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25572423723840 is an abundant number, since it is smaller than the sum of its proper divisors (74951556279360).

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

25572423723840 is a wasteful number, since it uses less digits than its factorization.

25572423723840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268473429 (or 1268473416 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 54.

The spelling of 25572423723840 in words is "twenty-five trillion, five hundred seventy-two billion, four hundred twenty-three million, seven hundred twenty-three thousand, eight hundred forty".