56541993 has 8 divisors (see below), whose sum is σ = 77228256. Its totient is φ = 36775200.

The previous prime is 56541973. The next prime is 56541997. The reversal of 56541993 is 39914565.

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

It is not a de Polignac number, because 56541993 - 2¹⁶ = 56476457 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (56541997) 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, 229723 + ... + 229968.

It is an arithmetic number, because the mean of its divisors is an integer number (9653532).

Almost surely, 2^56541993 is an apocalyptic number.

It is an amenable number.

56541993 is a deficient number, since it is larger than the sum of its proper divisors (20686263).

56541993 is a wasteful number, since it uses less digits than its factorization.

56541993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459735.

The product of its digits is 145800, while the sum is 42.

The square root of 56541993 is about 7519.4410031597. The cubic root of 56541993 is about 383.8165559882.

The spelling of 56541993 in words is "fifty-six million, five hundred forty-one thousand, nine hundred ninety-three".