56049142009 has 27 divisors (see below), whose sum is σ = 67432903173. Its totient is φ = 46449761400.

The previous prime is 56049141997. The next prime is 56049142027. The reversal of 56049142009 is 90024194065.

The square root of 56049142009 is 236747.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 56049142009 - 2⁵ = 56049141977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56049140009) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 51373554 + ... + 51374644.

Almost surely, 2^56049142009 is an apocalyptic number.

56049142009 is the 236747-th square number.

56049142009 is the 118374-th centered octagonal number.

It is an amenable number.

56049142009 is a deficient number, since it is larger than the sum of its proper divisors (11383761164).

56049142009 is an frugal number, since it uses more digits than its factorization.

56049142009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 56049142009 in words is "fifty-six billion, forty-nine million, one hundred forty-two thousand, nine".