56652809 has 4 divisors (see below), whose sum is σ = 58184004. Its totient is φ = 55121616.

The previous prime is 56652797. The next prime is 56652811. The reversal of 56652809 is 90825665.

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 44262409 + 12390400 = 6653^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 56652809 - 2⁸ = 56652553 is a prime.

It is a super-3 number, since 3×56652809³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56652899) 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, 765542 + ... + 765615.

It is an arithmetic number, because the mean of its divisors is an integer number (14546001).

Almost surely, 2^56652809 is an apocalyptic number.

It is an amenable number.

56652809 is a deficient number, since it is larger than the sum of its proper divisors (1531195).

56652809 is a wasteful number, since it uses less digits than its factorization.

56652809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531194.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 56652809 is about 7526.8060291202. The cubic root of 56652809 is about 384.0671382356.

The spelling of 56652809 in words is "fifty-six million, six hundred fifty-two thousand, eight hundred nine".