813572552 has 32 divisors (see below), whose sum is σ = 1729257600. Its totient is φ = 355731264.

The previous prime is 813572549. The next prime is 813572561. The reversal of 813572552 is 255275318.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203888 + ... + 207839.

It is an arithmetic number, because the mean of its divisors is an integer number (54039300).

Almost surely, 2^813572552 is an apocalyptic number.

It is an amenable number.

813572552 is an abundant number, since it is smaller than the sum of its proper divisors (915685048).

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

813572552 is a wasteful number, since it uses less digits than its factorization.

813572552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411765 (or 411761 counting only the distinct ones).

The product of its digits is 84000, while the sum is 38.

The square root of 813572552 is about 28523.1932293704. The cubic root of 813572552 is about 933.5382047996.

The spelling of 813572552 in words is "eight hundred thirteen million, five hundred seventy-two thousand, five hundred fifty-two".