57243807 has 16 divisors (see below), whose sum is σ = 85332480. Its totient is φ = 37925496.

The previous prime is 57243733. The next prime is 57243829. The reversal of 57243807 is 70834275.

57243807 is a `hidden beast` number, since 572 + 4 + 3 + 80 + 7 = 666.

It is not a de Polignac number, because 57243807 - 2¹¹ = 57241759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57242807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (5333280).

Almost surely, 2^57243807 is an apocalyptic number.

57243807 is a deficient number, since it is larger than the sum of its proper divisors (28088673).

57243807 is a wasteful number, since it uses less digits than its factorization.

57243807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13179 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 57243807 is about 7565.9637191834. The cubic root of 57243807 is about 385.3980411368.

The spelling of 57243807 in words is "fifty-seven million, two hundred forty-three thousand, eight hundred seven".