561372824 has 16 divisors (see below), whose sum is σ = 1065256920. Its totient is φ = 277304320.

The previous prime is 561372817. The next prime is 561372829. The reversal of 561372824 is 428273165.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561372829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422057 + ... + 423384.

Almost surely, 2^561372824 is an apocalyptic number.

It is an amenable number.

561372824 is a deficient number, since it is larger than the sum of its proper divisors (503884096).

561372824 is a wasteful number, since it uses less digits than its factorization.

561372824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845530 (or 845526 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 561372824 is about 23693.3075783015. The cubic root of 561372824 is about 824.9300578600.

The spelling of 561372824 in words is "five hundred sixty-one million, three hundred seventy-two thousand, eight hundred twenty-four".