56982818 has 4 divisors (see below), whose sum is σ = 85474230. Its totient is φ = 28491408.

The previous prime is 56982817. The next prime is 56982829. The reversal of 56982818 is 81828965.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38775529 + 18207289 = 6227^2 + 4267^2 .

It is a super-2 number, since 2×56982818² = 6494083094442248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56982817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14245703 + ... + 14245706.

Almost surely, 2^56982818 is an apocalyptic number.

56982818 is a deficient number, since it is larger than the sum of its proper divisors (28491412).

56982818 is a wasteful number, since it uses less digits than its factorization.

56982818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28491411.

The product of its digits is 276480, while the sum is 47.

The square root of 56982818 is about 7548.6964437577. The cubic root of 56982818 is about 384.8114396822.

The spelling of 56982818 in words is "fifty-six million, nine hundred eighty-two thousand, eight hundred eighteen".