56464985 has 4 divisors (see below), whose sum is σ = 67757988. Its totient is φ = 45171984.

The previous prime is 56464957. The next prime is 56465011. The reversal of 56464985 is 58946465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58946465 = 5 ⋅11789293.

It can be written as a sum of positive squares in 2 ways, for example, as 42237001 + 14227984 = 6499^2 + 3772^2 .

It is a cyclic number.

It is not a de Polignac number, because 56464985 - 2⁸ = 56464729 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, 5646494 + ... + 5646503.

It is an arithmetic number, because the mean of its divisors is an integer number (16939497).

Almost surely, 2^56464985 is an apocalyptic number.

It is an amenable number.

56464985 is a deficient number, since it is larger than the sum of its proper divisors (11293003).

56464985 is a wasteful number, since it uses less digits than its factorization.

56464985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11293002.

The product of its digits is 1036800, while the sum is 47.

The square root of 56464985 is about 7514.3186650554. The cubic root of 56464985 is about 383.6422290712.

The spelling of 56464985 in words is "fifty-six million, four hundred sixty-four thousand, nine hundred eighty-five".