561653652 has 48 divisors (see below), whose sum is σ = 1562867712. Its totient is φ = 153494880.

The previous prime is 561653647. The next prime is 561653671. The reversal of 561653652 is 256356165.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 561653652.

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, 143424 + ... + 147287.

It is an arithmetic number, because the mean of its divisors is an integer number (32559744).

Almost surely, 2^561653652 is an apocalyptic number.

It is an amenable number.

561653652 is an abundant number, since it is smaller than the sum of its proper divisors (1001214060).

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

561653652 is a wasteful number, since it uses less digits than its factorization.

561653652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290748 (or 290746 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The square root of 561653652 is about 23699.2331521507. The cubic root of 561653652 is about 825.0675926254.

The spelling of 561653652 in words is "five hundred sixty-one million, six hundred fifty-three thousand, six hundred fifty-two".