19925593056 has 120 divisors (see below), whose sum is σ = 61685011080. Its totient is φ = 6292276992.

The previous prime is 19925593043. The next prime is 19925593067. The reversal of 19925593056 is 65039552991.

It is a happy number.

19925593056 is a `hidden beast` number, since 1 + 9 + 9 + 2 + 559 + 30 + 56 = 666.

It is a super-3 number, since 3×19925593056³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 19925592993 and 19925593011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 153051 + ... + 251546.

It is an arithmetic number, because the mean of its divisors is an integer number (514041759).

Almost surely, 2^19925593056 is an apocalyptic number.

19925593056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19925593056 is an abundant number, since it is smaller than the sum of its proper divisors (41759418024).

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

19925593056 is a wasteful number, since it uses less digits than its factorization.

19925593056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404638 (or 404621 counting only the distinct ones).

The product of its (nonzero) digits is 3280500, while the sum is 54.

The spelling of 19925593056 in words is "nineteen billion, nine hundred twenty-five million, five hundred ninety-three thousand, fifty-six".