56781235 has 16 divisors (see below), whose sum is σ = 78105600. Its totient is φ = 38818656.

The previous prime is 56781229. The next prime is 56781259. The reversal of 56781235 is 53218765.

It is a cyclic number.

It is not a de Polignac number, because 56781235 - 2⁵ = 56781203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56781194 and 56781203.

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, 10306 + ... + 14824.

It is an arithmetic number, because the mean of its divisors is an integer number (4881600).

Almost surely, 2^56781235 is an apocalyptic number.

56781235 is a deficient number, since it is larger than the sum of its proper divisors (21324365).

56781235 is a wasteful number, since it uses less digits than its factorization.

56781235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4890.

The product of its digits is 50400, while the sum is 37.

The square root of 56781235 is about 7535.3324412397. The cubic root of 56781235 is about 384.3571325777.

The spelling of 56781235 in words is "fifty-six million, seven hundred eighty-one thousand, two hundred thirty-five".