56985101 has 4 divisors (see below), whose sum is σ = 57030204. Its totient is φ = 56940000.

The previous prime is 56985083. The next prime is 56985107. The reversal of 56985101 is 10158965.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10048900 + 46936201 = 3170^2 + 6851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56985101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56985107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20600 + ... + 23201.

It is an arithmetic number, because the mean of its divisors is an integer number (14257551).

Almost surely, 2^56985101 is an apocalyptic number.

It is an amenable number.

56985101 is a deficient number, since it is larger than the sum of its proper divisors (45103).

56985101 is a wasteful number, since it uses less digits than its factorization.

56985101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45102.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 56985101 is about 7548.8476604049. The cubic root of 56985101 is about 384.8165787330.

The spelling of 56985101 in words is "fifty-six million, nine hundred eighty-five thousand, one hundred one".