57220363 has 4 divisors (see below), whose sum is σ = 57274960. Its totient is φ = 57165768.

The previous prime is 57220357. The next prime is 57220367. The reversal of 57220363 is 36302275.

57220363 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57220363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57220367) 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, 25695 + ... + 27832.

It is an arithmetic number, because the mean of its divisors is an integer number (14318740).

Almost surely, 2^57220363 is an apocalyptic number.

57220363 is a deficient number, since it is larger than the sum of its proper divisors (54597).

57220363 is a wasteful number, since it uses less digits than its factorization.

57220363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54596.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 57220363 is about 7564.4142535956. The cubic root of 57220363 is about 385.3454211482.

The spelling of 57220363 in words is "fifty-seven million, two hundred twenty thousand, three hundred sixty-three".