561662352 has 30 divisors (see below), whose sum is σ = 1571874902. Its totient is φ = 187220736.

The previous prime is 561662351. The next prime is 561662383. The reversal of 561662352 is 253266165.

It is a happy number.

561662352 is a `hidden beast` number, since 5 + 616 + 6 + 2 + 35 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 462938256 + 98724096 = 21516^2 + 9936^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (561662351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1950073 + ... + 1950360.

Almost surely, 2^561662352 is an apocalyptic number.

It is an amenable number.

561662352 is an abundant number, since it is smaller than the sum of its proper divisors (1010212550).

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

561662352 is a wasteful number, since it uses less digits than its factorization.

561662352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900447 (or 3900438 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 561662352 is about 23699.4167016828. The cubic root of 561662352 is about 825.0718526950.

The spelling of 561662352 in words is "five hundred sixty-one million, six hundred sixty-two thousand, three hundred fifty-two".