56100061 has 2 divisors, whose sum is σ = 56100062. Its totient is φ = 56100060.

The previous prime is 56100041. The next prime is 56100067. The reversal of 56100061 is 16000165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 820836 = 7435^2 + 906^2 .

It is a cyclic number.

It is not a de Polignac number, because 56100061 - 2¹³ = 56091869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56100067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28050030 + 28050031.

It is an arithmetic number, because the mean of its divisors is an integer number (28050031).

Almost surely, 2^56100061 is an apocalyptic number.

It is an amenable number.

56100061 is a deficient number, since it is larger than the sum of its proper divisors (1).

56100061 is an equidigital number, since it uses as much as digits as its factorization.

56100061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 56100061 is about 7489.9973965283. The cubic root of 56100061 is about 382.8139697881.

The spelling of 56100061 in words is "fifty-six million, one hundred thousand, sixty-one".