56136901 has 2 divisors, whose sum is σ = 56136902. Its totient is φ = 56136900.

The previous prime is 56136893. The next prime is 56136917. The reversal of 56136901 is 10963165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 7834401 = 6950^2 + 2799^2 .

It is a cyclic number.

It is not a de Polignac number, because 56136901 - 2³ = 56136893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56136961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28068450 + 28068451.

It is an arithmetic number, because the mean of its divisors is an integer number (28068451).

Almost surely, 2^56136901 is an apocalyptic number.

It is an amenable number.

56136901 is a deficient number, since it is larger than the sum of its proper divisors (1).

56136901 is an equidigital number, since it uses as much as digits as its factorization.

56136901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 56136901 is about 7492.4562728120. The cubic root of 56136901 is about 382.8977473602.

The spelling of 56136901 in words is "fifty-six million, one hundred thirty-six thousand, nine hundred one".