56142899 has 4 divisors (see below), whose sum is σ = 57512280. Its totient is φ = 54773520.

The previous prime is 56142887. The next prime is 56142901. The reversal of 56142899 is 99824165.

56142899 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 56142899 - 2²⁰ = 55094323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56142859) 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, 684629 + ... + 684710.

It is an arithmetic number, because the mean of its divisors is an integer number (14378070).

Almost surely, 2^56142899 is an apocalyptic number.

56142899 is a deficient number, since it is larger than the sum of its proper divisors (1369381).

56142899 is a wasteful number, since it uses less digits than its factorization.

56142899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369380.

The product of its digits is 155520, while the sum is 44.

The square root of 56142899 is about 7492.8565313904. The cubic root of 56142899 is about 382.9113838979.

The spelling of 56142899 in words is "fifty-six million, one hundred forty-two thousand, eight hundred ninety-nine".