61317056 has 28 divisors (see below), whose sum is σ = 122425968. Its totient is φ = 30469632.

The previous prime is 61317037. The next prime is 61317083. The reversal of 61317056 is 65071316.

It is a congruent number.

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, 7820 + ... + 13556.

It is an arithmetic number, because the mean of its divisors is an integer number (4372356).

Almost surely, 2^61317056 is an apocalyptic number.

It is an amenable number.

61317056 is a deficient number, since it is larger than the sum of its proper divisors (61108912).

61317056 is a wasteful number, since it uses less digits than its factorization.

61317056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916 (or 5906 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 61317056 is about 7830.5208000490. The cubic root of 61317056 is about 394.3305565066.

The spelling of 61317056 in words is "sixty-one million, three hundred seventeen thousand, fifty-six".