56299691 has 4 divisors (see below), whose sum is σ = 64342512. Its totient is φ = 48256872.

The previous prime is 56299609. The next prime is 56299693. The reversal of 56299691 is 19699265.

56299691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56299691 - 2¹⁸ = 56037547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56299693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4021400 + ... + 4021413.

It is an arithmetic number, because the mean of its divisors is an integer number (16085628).

Almost surely, 2^56299691 is an apocalyptic number.

56299691 is a deficient number, since it is larger than the sum of its proper divisors (8042821).

56299691 is an equidigital number, since it uses as much as digits as its factorization.

56299691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042820.

The product of its digits is 262440, while the sum is 47.

The square root of 56299691 is about 7503.3120020428. The cubic root of 56299691 is about 383.2675087143.

The spelling of 56299691 in words is "fifty-six million, two hundred ninety-nine thousand, six hundred ninety-one".