56136405 has 32 divisors (see below), whose sum is σ = 97090560. Its totient is φ = 27532800.

The previous prime is 56136403. The next prime is 56136461. The reversal of 56136405 is 50463165.

56136405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56136405 - 2¹ = 56136403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56136403) 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 31 ways as a sum of consecutive naturals, for example, 93105 + ... + 93705.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 2^56136405 is an apocalyptic number.

It is an amenable number.

56136405 is a deficient number, since it is larger than the sum of its proper divisors (40954155).

56136405 is a wasteful number, since it uses less digits than its factorization.

56136405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56136405 is about 7492.4231727793. The cubic root of 56136405 is about 382.8966196538.

The spelling of 56136405 in words is "fifty-six million, one hundred thirty-six thousand, four hundred five".