56949983 has 4 divisors (see below), whose sum is σ = 60300000. Its totient is φ = 53599968.

The previous prime is 56949979. The next prime is 56950097. The reversal of 56949983 is 38994965.

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

It is a cyclic number.

It is not a de Polignac number, because 56949983 - 2² = 56949979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56949913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674983 + ... + 1675016.

It is an arithmetic number, because the mean of its divisors is an integer number (15075000).

Almost surely, 2^56949983 is an apocalyptic number.

56949983 is a deficient number, since it is larger than the sum of its proper divisors (3350017).

56949983 is a wasteful number, since it uses less digits than its factorization.

56949983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350016.

The product of its digits is 2099520, while the sum is 53.

The square root of 56949983 is about 7546.5212515437. The cubic root of 56949983 is about 384.7375126531.

The spelling of 56949983 in words is "fifty-six million, nine hundred forty-nine thousand, nine hundred eighty-three".