57801217 has 4 divisors (see below), whose sum is σ = 58891860. Its totient is φ = 56710576.

The previous prime is 57801209. The next prime is 57801257. The reversal of 57801217 is 71210875.

It is a happy number.

57801217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17338896 + 40462321 = 4164^2 + 6361^2 .

It is a cyclic number.

It is not a de Polignac number, because 57801217 - 2³ = 57801209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57801257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545242 + ... + 545347.

It is an arithmetic number, because the mean of its divisors is an integer number (14722965).

Almost surely, 2^57801217 is an apocalyptic number.

It is an amenable number.

57801217 is a deficient number, since it is larger than the sum of its proper divisors (1090643).

57801217 is a wasteful number, since it uses less digits than its factorization.

57801217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090642.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 57801217 is about 7602.7111611582. The cubic root of 57801217 is about 386.6449369312.

The spelling of 57801217 in words is "fifty-seven million, eight hundred one thousand, two hundred seventeen".