561205252 has 12 divisors (see below), whose sum is σ = 982544080. Its totient is φ = 280478376.

The previous prime is 561205213. The next prime is 561205277. The reversal of 561205252 is 252502165.

It is a self number, because there is not a number n which added to its sum of digits gives 561205252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20502 + ... + 39277.

Almost surely, 2^561205252 is an apocalyptic number.

It is an amenable number.

561205252 is a deficient number, since it is larger than the sum of its proper divisors (421338828).

561205252 is a wasteful number, since it uses less digits than its factorization.

561205252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62130 (or 62128 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 561205252 is about 23689.7710415276. The cubic root of 561205252 is about 824.8479680671.

The spelling of 561205252 in words is "five hundred sixty-one million, two hundred five thousand, two hundred fifty-two".