56173949 has 8 divisors (see below), whose sum is σ = 60671352. Its totient is φ = 51701760.

The previous prime is 56173879. The next prime is 56173951. The reversal of 56173949 is 94937165.

It can be written as a sum of positive squares in 4 ways, for example, as 28900 + 56145049 = 170^2 + 7493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56173949 - 2²⁴ = 39396733 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 (56173969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (7583919).

Almost surely, 2^56173949 is an apocalyptic number.

It is an amenable number.

56173949 is a deficient number, since it is larger than the sum of its proper divisors (4497403).

56173949 is a wasteful number, since it uses less digits than its factorization.

56173949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12607.

The product of its digits is 204120, while the sum is 44.

The square root of 56173949 is about 7494.9282184688. The cubic root of 56173949 is about 382.9819609880.

The spelling of 56173949 in words is "fifty-six million, one hundred seventy-three thousand, nine hundred forty-nine".