56949985 has 4 divisors (see below), whose sum is σ = 68339988. Its totient is φ = 45559984.

The previous prime is 56949979. The next prime is 56950097. The reversal of 56949985 is 58994965.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25847056 + 31102929 = 5084^2 + 5577^2 .

It is a cyclic number.

It is not a de Polignac number, because 56949985 - 2⁵ = 56949953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5694994 + ... + 5695003.

It is an arithmetic number, because the mean of its divisors is an integer number (17084997).

Almost surely, 2^56949985 is an apocalyptic number.

It is an amenable number.

56949985 is a deficient number, since it is larger than the sum of its proper divisors (11390003).

56949985 is a wasteful number, since it uses less digits than its factorization.

56949985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11390002.

The product of its digits is 3499200, while the sum is 55.

The square root of 56949985 is about 7546.5213840550. The cubic root of 56949985 is about 384.7375171570.

The spelling of 56949985 in words is "fifty-six million, nine hundred forty-nine thousand, nine hundred eighty-five".