561001052 has 12 divisors (see below), whose sum is σ = 991873680. Its totient is φ = 277608576.

The previous prime is 561001039. The next prime is 561001057. The reversal of 561001052 is 250100165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561001057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722552 + ... + 723327.

It is an arithmetic number, because the mean of its divisors is an integer number (82656140).

Almost surely, 2^561001052 is an apocalyptic number.

It is an amenable number.

561001052 is a deficient number, since it is larger than the sum of its proper divisors (430872628).

561001052 is a wasteful number, since it uses less digits than its factorization.

561001052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445980 (or 1445978 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 561001052 is about 23685.4607723810. The cubic root of 561001052 is about 824.7479129403.

The spelling of 561001052 in words is "five hundred sixty-one million, one thousand, fifty-two".