56836405 has 16 divisors (see below), whose sum is σ = 70035840. Its totient is φ = 44261568.

The previous prime is 56836399. The next prime is 56836441. The reversal of 56836405 is 50463865.

It is a cyclic number.

It is not a de Polignac number, because 56836405 - 2³ = 56836397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36064 + ... + 37606.

It is an arithmetic number, because the mean of its divisors is an integer number (4377240).

Almost surely, 2^56836405 is an apocalyptic number.

It is an amenable number.

56836405 is a deficient number, since it is larger than the sum of its proper divisors (13199435).

56836405 is a wasteful number, since it uses less digits than its factorization.

56836405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 56836405 is about 7538.9923066680. The cubic root of 56836405 is about 384.4815757965.

The spelling of 56836405 in words is "fifty-six million, eight hundred thirty-six thousand, four hundred five".