182513625021 has 48 divisors (see below), whose sum is σ = 334935444480. Its totient is φ = 93165396480.

The previous prime is 182513624983. The next prime is 182513625031. The reversal of 182513625021 is 120526315281.

182513625021 is a `hidden beast` number, since 1 + 8 + 2 + 5 + 1 + 3 + 625 + 0 + 21 = 666.

It is not a de Polignac number, because 182513625021 - 2⁹ = 182513624509 is a prime.

It is a super-2 number, since 2×182513625021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182513625031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3568956 + ... + 3619733.

It is an arithmetic number, because the mean of its divisors is an integer number (6977821760).

Almost surely, 2^182513625021 is an apocalyptic number.

It is an amenable number.

182513625021 is a deficient number, since it is larger than the sum of its proper divisors (152421819459).

182513625021 is a wasteful number, since it uses less digits than its factorization.

182513625021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188746 (or 7188743 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 182513625021 in words is "one hundred eighty-two billion, five hundred thirteen million, six hundred twenty-five thousand, twenty-one".