56200905 has 32 divisors (see below), whose sum is σ = 100437120. Its totient is φ = 29816640.

The previous prime is 56200901. The next prime is 56200931. The reversal of 56200905 is 50900265.

It is not a de Polignac number, because 56200905 - 2² = 56200901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56200901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27499 + ... + 29471.

It is an arithmetic number, because the mean of its divisors is an integer number (3138660).

Almost surely, 2^56200905 is an apocalyptic number.

It is an amenable number.

56200905 is a deficient number, since it is larger than the sum of its proper divisors (44236215).

56200905 is a wasteful number, since it uses less digits than its factorization.

56200905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 56200905 is about 7496.7262855196. The cubic root of 56200905 is about 383.0432112712.

The spelling of 56200905 in words is "fifty-six million, two hundred thousand, nine hundred five".