561552696 has 64 divisors (see below), whose sum is σ = 1562803200. Its totient is φ = 186832224.

The previous prime is 561552689. The next prime is 561552707. The reversal of 561552696 is 696255165.

561552696 is a `hidden beast` number, since 5 + 6 + 1 + 552 + 6 + 96 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128971 + ... + 133253.

It is an arithmetic number, because the mean of its divisors is an integer number (24418800).

Almost surely, 2^561552696 is an apocalyptic number.

It is an amenable number.

561552696 is an abundant number, since it is smaller than the sum of its proper divisors (1001250504).

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

561552696 is a wasteful number, since it uses less digits than its factorization.

561552696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905 (or 4895 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 561552696 is about 23697.1031140939. The cubic root of 561552696 is about 825.0181549724.

It can be divided in two parts, 5615 and 52696, that added together give a triangular number (58311 = T₃₄₁).

The spelling of 561552696 in words is "five hundred sixty-one million, five hundred fifty-two thousand, six hundred ninety-six".