57801243 has 4 divisors (see below), whose sum is σ = 77068328. Its totient is φ = 38534160.

The previous prime is 57801209. The next prime is 57801257. The reversal of 57801243 is 34210875.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57801243 - 2¹³ = 57793051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57801243.

It is not an unprimeable number, because it can be changed into a prime (57800243) 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, 9633538 + ... + 9633543.

It is an arithmetic number, because the mean of its divisors is an integer number (19267082).

Almost surely, 2^57801243 is an apocalyptic number.

57801243 is a deficient number, since it is larger than the sum of its proper divisors (19267085).

57801243 is a wasteful number, since it uses less digits than its factorization.

57801243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19267084.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 57801243 is about 7602.7128710744. The cubic root of 57801243 is about 386.6449949044.

The spelling of 57801243 in words is "fifty-seven million, eight hundred one thousand, two hundred forty-three".