561248472 has 32 divisors (see below), whose sum is σ = 1485658800. Its totient is φ = 176077824.

The previous prime is 561248453. The next prime is 561248509. The reversal of 561248472 is 274842165.

It is a self number, because there is not a number n which added to its sum of digits gives 561248472.

It is a congruent number.

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, 687397 + ... + 688212.

Almost surely, 2^561248472 is an apocalyptic number.

It is an amenable number.

561248472 is an abundant number, since it is smaller than the sum of its proper divisors (924410328).

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

561248472 is a wasteful number, since it uses less digits than its factorization.

561248472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375635 (or 1375631 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 561248472 is about 23690.6832320218. The cubic root of 561248472 is about 824.8691421467.

The spelling of 561248472 in words is "five hundred sixty-one million, two hundred forty-eight thousand, four hundred seventy-two".