56140049 has 4 divisors (see below), whose sum is σ = 64160064. Its totient is φ = 48120036.

The previous prime is 56140013. The next prime is 56140067. The reversal of 56140049 is 94004165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56140049 - 2⁸ = 56139793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56140009) 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, 4009997 + ... + 4010010.

It is an arithmetic number, because the mean of its divisors is an integer number (16040016).

Almost surely, 2^56140049 is an apocalyptic number.

It is an amenable number.

56140049 is a deficient number, since it is larger than the sum of its proper divisors (8020015).

56140049 is an equidigital number, since it uses as much as digits as its factorization.

56140049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8020014.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 56140049 is about 7492.6663478364. Note that the first 3 decimals coincide. The cubic root of 56140049 is about 382.9049045038.

The spelling of 56140049 in words is "fifty-six million, one hundred forty thousand, forty-nine".