56045999 has 4 divisors (see below), whose sum is σ = 56721336. Its totient is φ = 55370664.

The previous prime is 56045987. The next prime is 56046013. The reversal of 56045999 is 99954065.

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 56045999 - 2¹² = 56041903 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 (56045959) 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, 337544 + ... + 337709.

It is an arithmetic number, because the mean of its divisors is an integer number (14180334).

Almost surely, 2^56045999 is an apocalyptic number.

56045999 is a deficient number, since it is larger than the sum of its proper divisors (675337).

56045999 is an equidigital number, since it uses as much as digits as its factorization.

56045999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675336.

The product of its (nonzero) digits is 437400, while the sum is 47.

The square root of 56045999 is about 7486.3875801350. The cubic root of 56045999 is about 382.6909613636.

It can be divided in two parts, 56045 and 999, that multiplied together give a palindrome (55988955).

The spelling of 56045999 in words is "fifty-six million, forty-five thousand, nine hundred ninety-nine".