61150564 has 12 divisors (see below), whose sum is σ = 113308524. Its totient is φ = 28776704.

The previous prime is 61150559. The next prime is 61150571. The reversal of 61150564 is 46505116.

It can be written as a sum of positive squares in 2 ways, for example, as 19289664 + 41860900 = 4392^2 + 6470^2 .

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, 449569 + ... + 449704.

It is an arithmetic number, because the mean of its divisors is an integer number (9442377).

Almost surely, 2^61150564 is an apocalyptic number.

It is an amenable number.

61150564 is a deficient number, since it is larger than the sum of its proper divisors (52157960).

61150564 is a wasteful number, since it uses less digits than its factorization.

61150564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899294 (or 899292 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 61150564 is about 7819.8826078145. The cubic root of 61150564 is about 393.9733291230.

The spelling of 61150564 in words is "sixty-one million, one hundred fifty thousand, five hundred sixty-four".