57243451 has 4 divisors (see below), whose sum is σ = 57574512. Its totient is φ = 56912392.

The previous prime is 57243413. The next prime is 57243457. The reversal of 57243451 is 15434275.

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 57243451 - 2⁷ = 57243323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57243457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165271 + ... + 165616.

It is an arithmetic number, because the mean of its divisors is an integer number (14393628).

Almost surely, 2^57243451 is an apocalyptic number.

57243451 is a deficient number, since it is larger than the sum of its proper divisors (331061).

57243451 is a wasteful number, since it uses less digits than its factorization.

57243451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331060.

The product of its digits is 16800, while the sum is 31.

The square root of 57243451 is about 7565.9401927322. The cubic root of 57243451 is about 385.3972422033.

The spelling of 57243451 in words is "fifty-seven million, two hundred forty-three thousand, four hundred fifty-one".