561382524 has 36 divisors (see below), whose sum is σ = 1427562864. Its totient is φ = 186004992.

The previous prime is 561382513. The next prime is 561382529. The reversal of 561382524 is 425283165.

561382524 is a `hidden beast` number, since 56 + 1 + 3 + 82 + 524 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×561382524² = 630300676505221152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561382529) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 40677 + ... + 52700.

It is an arithmetic number, because the mean of its divisors is an integer number (39654524).

Almost surely, 2^561382524 is an apocalyptic number.

It is an amenable number.

561382524 is an abundant number, since it is smaller than the sum of its proper divisors (866180340).

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

561382524 is a wasteful number, since it uses less digits than its factorization.

561382524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93554 (or 93549 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 561382524 is about 23693.5122765706. The cubic root of 561382524 is about 824.9348091739.

The spelling of 561382524 in words is "five hundred sixty-one million, three hundred eighty-two thousand, five hundred twenty-four".