56299661 has 8 divisors (see below), whose sum is σ = 61560000. Its totient is φ = 51063040.

The previous prime is 56299609. The next prime is 56299693. The reversal of 56299661 is 16699265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56299661 - 2¹⁰ = 56298637 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 (56299361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (7695000).

Almost surely, 2^56299661 is an apocalyptic number.

It is an amenable number.

56299661 is a deficient number, since it is larger than the sum of its proper divisors (5260339).

56299661 is a wasteful number, since it uses less digits than its factorization.

56299661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11859.

The product of its digits is 174960, while the sum is 44.

The square root of 56299661 is about 7503.3100029254. The cubic root of 56299661 is about 383.2674406380.

The spelling of 56299661 in words is "fifty-six million, two hundred ninety-nine thousand, six hundred sixty-one".