61500056 has 16 divisors (see below), whose sum is σ = 115395840. Its totient is φ = 30727840.

The previous prime is 61499993. The next prime is 61500059. The reversal of 61500056 is 65000516.

61500056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61500059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20066 + ... + 22926.

It is an arithmetic number, because the mean of its divisors is an integer number (7212240).

Almost surely, 2^61500056 is an apocalyptic number.

It is an amenable number.

61500056 is a deficient number, since it is larger than the sum of its proper divisors (53895784).

61500056 is a wasteful number, since it uses less digits than its factorization.

61500056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554 (or 5550 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61500056 is about 7842.1971411078. The cubic root of 61500056 is about 394.7224584557.

The spelling of 61500056 in words is "sixty-one million, five hundred thousand, fifty-six".