56491814 has 4 divisors (see below), whose sum is σ = 84737724. Its totient is φ = 28245906.

The previous prime is 56491811. The next prime is 56491819. The reversal of 56491814 is 41819465.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56491811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14122952 + ... + 14122955.

It is an arithmetic number, because the mean of its divisors is an integer number (21184431).

Almost surely, 2^56491814 is an apocalyptic number.

56491814 is a deficient number, since it is larger than the sum of its proper divisors (28245910).

56491814 is a wasteful number, since it uses less digits than its factorization.

56491814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28245909.

The product of its digits is 34560, while the sum is 38.

The square root of 56491814 is about 7516.1036448415. The cubic root of 56491814 is about 383.7029812206.

The spelling of 56491814 in words is "fifty-six million, four hundred ninety-one thousand, eight hundred fourteen".