61563056 has 20 divisors (see below), whose sum is σ = 123392400. Its totient is φ = 29719872.

The previous prime is 61563023. The next prime is 61563067. The reversal of 61563056 is 65036516.

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, 65876 + ... + 66803.

It is an arithmetic number, because the mean of its divisors is an integer number (6169620).

Almost surely, 2^61563056 is an apocalyptic number.

It is an amenable number.

61563056 is an abundant number, since it is smaller than the sum of its proper divisors (61829344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61563056 is a wasteful number, since it uses less digits than its factorization.

61563056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132716 (or 132710 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 61563056 is about 7846.2128444237. The cubic root of 61563056 is about 394.8571956142.

The spelling of 61563056 in words is "sixty-one million, five hundred sixty-three thousand, fifty-six".