56981674 has 4 divisors (see below), whose sum is σ = 85472514. Its totient is φ = 28490836.

The previous prime is 56981651. The next prime is 56981681. The reversal of 56981674 is 47618965.

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., 44129449 + 12852225 = 6643^2 + 3585^2 .

It is a super-2 number, since 2×56981674² = 6493822343684552, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14245417 + ... + 14245420.

Almost surely, 2^56981674 is an apocalyptic number.

56981674 is a deficient number, since it is larger than the sum of its proper divisors (28490840).

56981674 is a wasteful number, since it uses less digits than its factorization.

56981674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28490839.

The product of its digits is 362880, while the sum is 46.

The square root of 56981674 is about 7548.6206687050. The cubic root of 56981674 is about 384.8088644777.

The spelling of 56981674 in words is "fifty-six million, nine hundred eighty-one thousand, six hundred seventy-four".