57243719 has 8 divisors (see below), whose sum is σ = 61715472. Its totient is φ = 52781760.

The previous prime is 57243691. The next prime is 57243721. The reversal of 57243719 is 91734275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57243719 - 2²⁰ = 56195143 is a prime.

It is a super-2 number, since 2×57243719² = 6553686729901922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57242719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13664 + ... + 17354.

It is an arithmetic number, because the mean of its divisors is an integer number (7714434).

Almost surely, 2^57243719 is an apocalyptic number.

57243719 is a deficient number, since it is larger than the sum of its proper divisors (4471753).

57243719 is a wasteful number, since it uses less digits than its factorization.

57243719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897.

The product of its digits is 52920, while the sum is 38.

The square root of 57243719 is about 7565.9579036630. The cubic root of 57243719 is about 385.3978436479.

The spelling of 57243719 in words is "fifty-seven million, two hundred forty-three thousand, seven hundred nineteen".