56501243 has 8 divisors (see below), whose sum is σ = 57546288. Its totient is φ = 55465984.

The previous prime is 56501227. The next prime is 56501261. The reversal of 56501243 is 34210565.

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 56501243 - 2⁴ = 56501227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56501213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9755 + ... + 14427.

It is an arithmetic number, because the mean of its divisors is an integer number (7193286).

Almost surely, 2^56501243 is an apocalyptic number.

56501243 is a deficient number, since it is larger than the sum of its proper divisors (1045045).

56501243 is a wasteful number, since it uses less digits than its factorization.

56501243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56501243 is about 7516.7308718618. The cubic root of 56501243 is about 383.7243278776.

The spelling of 56501243 in words is "fifty-six million, five hundred one thousand, two hundred forty-three".