56717249 has 4 divisors (see below), whose sum is σ = 56743380. Its totient is φ = 56691120.

The previous prime is 56717237. The next prime is 56717267. The reversal of 56717249 is 94271765.

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 40233649 + 16483600 = 6343^2 + 4060^2 .

It is a cyclic number.

It is not a de Polignac number, because 56717249 - 2⁸ = 56716993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56713249) 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, 9482 + ... + 14259.

It is an arithmetic number, because the mean of its divisors is an integer number (14185845).

Almost surely, 2^56717249 is an apocalyptic number.

It is an amenable number.

56717249 is a deficient number, since it is larger than the sum of its proper divisors (26131).

56717249 is a wasteful number, since it uses less digits than its factorization.

56717249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26130.

The product of its digits is 105840, while the sum is 41.

The square root of 56717249 is about 7531.0855127266. The cubic root of 56717249 is about 384.2127027070.

The spelling of 56717249 in words is "fifty-six million, seven hundred seventeen thousand, two hundred forty-nine".