561651057 has 32 divisors (see below), whose sum is σ = 909068160. Its totient is φ = 339888960.

The previous prime is 561651047. The next prime is 561651113. The reversal of 561651057 is 750156165.

561651057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561651057 - 2¹⁴ = 561634673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561651047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330903 + ... + 332595.

It is an arithmetic number, because the mean of its divisors is an integer number (28408380).

Almost surely, 2^561651057 is an apocalyptic number.

It is an amenable number.

561651057 is a deficient number, since it is larger than the sum of its proper divisors (347417103).

561651057 is a wasteful number, since it uses less digits than its factorization.

561651057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830 (or 2824 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 561651057 is about 23699.1784034806. The cubic root of 561651057 is about 825.0663219409.

The spelling of 561651057 in words is "five hundred sixty-one million, six hundred fifty-one thousand, fifty-seven".