561533245 has 32 divisors (see below), whose sum is σ = 833414400. Its totient is φ = 353687040.

The previous prime is 561533227. The next prime is 561533257. The reversal of 561533245 is 542335165.

It is not a de Polignac number, because 561533245 - 2⁷ = 561533117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561533245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93081 + ... + 98929.

It is an arithmetic number, because the mean of its divisors is an integer number (26044200).

Almost surely, 2^561533245 is an apocalyptic number.

It is an amenable number.

561533245 is a deficient number, since it is larger than the sum of its proper divisors (271881155).

561533245 is a wasteful number, since it uses less digits than its factorization.

561533245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085.

The product of its digits is 54000, while the sum is 34.

The square root of 561533245 is about 23696.6927017253. The cubic root of 561533245 is about 825.0086292333.

The spelling of 561533245 in words is "five hundred sixty-one million, five hundred thirty-three thousand, two hundred forty-five".