56144537 has 4 divisors (see below), whose sum is σ = 56311476. Its totient is φ = 55977600.

The previous prime is 56144531. The next prime is 56144567. The reversal of 56144537 is 73544165.

56144537 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 can be written as a sum of positive squares in 2 ways, for example, as 22458121 + 33686416 = 4739^2 + 5804^2 .

It is a cyclic number.

It is not a de Polignac number, because 56144537 - 2⁴ = 56144521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56144497 and 56144506.

It is not an unprimeable number, because it can be changed into a prime (56144531) 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, 82964 + ... + 83637.

It is an arithmetic number, because the mean of its divisors is an integer number (14077869).

Almost surely, 2^56144537 is an apocalyptic number.

It is an amenable number.

56144537 is a deficient number, since it is larger than the sum of its proper divisors (166939).

56144537 is a wasteful number, since it uses less digits than its factorization.

56144537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166938.

The product of its digits is 50400, while the sum is 35.

The square root of 56144537 is about 7492.9658347012. The cubic root of 56144537 is about 382.9151077452.

The spelling of 56144537 in words is "fifty-six million, one hundred forty-four thousand, five hundred thirty-seven".