56381775 has 24 divisors (see below), whose sum is σ = 98703504. Its totient is φ = 28300800.

The previous prime is 56381761. The next prime is 56381783. The reversal of 56381775 is 57718365.

It is not a de Polignac number, because 56381775 - 2¹² = 56377679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20836 + ... + 23385.

It is an arithmetic number, because the mean of its divisors is an integer number (4112646).

Almost surely, 2^56381775 is an apocalyptic number.

56381775 is a deficient number, since it is larger than the sum of its proper divisors (42321729).

56381775 is a wasteful number, since it uses less digits than its factorization.

56381775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44251 (or 44246 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 56381775 is about 7508.7798609361. The cubic root of 56381775 is about 383.4536841180.

The spelling of 56381775 in words is "fifty-six million, three hundred eighty-one thousand, seven hundred seventy-five".