56724293 has 8 divisors (see below), whose sum is σ = 58380312. Its totient is φ = 55074816.

The previous prime is 56724289. The next prime is 56724301. The reversal of 56724293 is 39242765.

It can be written as a sum of positive squares in 4 ways, for example, as 42601729 + 14122564 = 6527^2 + 3758^2 .

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 56724293 - 2² = 56724289 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 (56724593) 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, 20021 + ... + 22677.

It is an arithmetic number, because the mean of its divisors is an integer number (7297539).

Almost surely, 2^56724293 is an apocalyptic number.

It is an amenable number.

56724293 is a deficient number, since it is larger than the sum of its proper divisors (1656019).

56724293 is a wasteful number, since it uses less digits than its factorization.

56724293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its digits is 90720, while the sum is 38.

The square root of 56724293 is about 7531.5531598735. The cubic root of 56724293 is about 384.2286078169.

The spelling of 56724293 in words is "fifty-six million, seven hundred twenty-four thousand, two hundred ninety-three".