56400299 has 4 divisors (see below), whose sum is σ = 56415480. Its totient is φ = 56385120.

The previous prime is 56400287. The next prime is 56400317. The reversal of 56400299 is 99200465.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56400299 - 2²⁴ = 39623083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56400259) 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, 2147 + ... + 10835.

It is an arithmetic number, because the mean of its divisors is an integer number (14103870).

Almost surely, 2^56400299 is an apocalyptic number.

56400299 is a deficient number, since it is larger than the sum of its proper divisors (15181).

56400299 is an equidigital number, since it uses as much as digits as its factorization.

56400299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15180.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 56400299 is about 7510.0132489896. The cubic root of 56400299 is about 383.4956735629.

The spelling of 56400299 in words is "fifty-six million, four hundred thousand, two hundred ninety-nine".