61056530 has 16 divisors (see below), whose sum is σ = 111976344. Its totient is φ = 23961600.

The previous prime is 61056529. The next prime is 61056533. The reversal of 61056530 is 3565016.

It can be written as a sum of positive squares in 4 ways, for example, as 37075921 + 23980609 = 6089^2 + 4897^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61056530.

It is not an unprimeable number, because it can be changed into a prime (61056533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57071 + ... + 58130.

Almost surely, 2^61056530 is an apocalyptic number.

61056530 is a deficient number, since it is larger than the sum of its proper divisors (50919814).

61056530 is a wasteful number, since it uses less digits than its factorization.

61056530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115261.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 61056530 is about 7813.8678002638. The cubic root of 61056530 is about 393.7712819605.

The spelling of 61056530 in words is "sixty-one million, fifty-six thousand, five hundred thirty".