56136461 has 2 divisors, whose sum is σ = 56136462. Its totient is φ = 56136460.

The previous prime is 56136403. The next prime is 56136463. The reversal of 56136461 is 16463165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39375625 + 16760836 = 6275^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 56136461 - 2¹⁸ = 55874317 is a prime.

Together with 56136463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56136463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28068230 + 28068231.

It is an arithmetic number, because the mean of its divisors is an integer number (28068231).

Almost surely, 2^56136461 is an apocalyptic number.

It is an amenable number.

56136461 is a deficient number, since it is larger than the sum of its proper divisors (1).

56136461 is an equidigital number, since it uses as much as digits as its factorization.

56136461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 56136461 is about 7492.4269098871. The cubic root of 56136461 is about 382.8967469758.

The spelling of 56136461 in words is "fifty-six million, one hundred thirty-six thousand, four hundred sixty-one".