561213352 has 32 divisors (see below), whose sum is σ = 1216123200. Its totient is φ = 237815424.

The previous prime is 561213349. The next prime is 561213361. The reversal of 561213352 is 253312165.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 561213352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51318 + ... + 61285.

It is an arithmetic number, because the mean of its divisors is an integer number (38003850).

Almost surely, 2^561213352 is an apocalyptic number.

It is an amenable number.

561213352 is an abundant number, since it is smaller than the sum of its proper divisors (654909848).

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

561213352 is a wasteful number, since it uses less digits than its factorization.

561213352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112705 (or 112701 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 561213352 is about 23689.9420007732. The cubic root of 561213352 is about 824.8519364527.

The spelling of 561213352 in words is "five hundred sixty-one million, two hundred thirteen thousand, three hundred fifty-two".