57272323 has 4 divisors (see below), whose sum is σ = 59762448. Its totient is φ = 54782200.

The previous prime is 57272321. The next prime is 57272329. The reversal of 57272323 is 32327275.

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

It is a cyclic number.

It is not a de Polignac number, because 57272323 - 2¹ = 57272321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57272321) 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, 1245028 + ... + 1245073.

It is an arithmetic number, because the mean of its divisors is an integer number (14940612).

Almost surely, 2^57272323 is an apocalyptic number.

57272323 is a deficient number, since it is larger than the sum of its proper divisors (2490125).

57272323 is a wasteful number, since it uses less digits than its factorization.

57272323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490124.

The product of its digits is 17640, while the sum is 31.

The square root of 57272323 is about 7567.8479768029. The cubic root of 57272323 is about 385.4620258525.

Adding to 57272323 its reverse (32327275), we get a palindrome (89599598).

The spelling of 57272323 in words is "fifty-seven million, two hundred seventy-two thousand, three hundred twenty-three".