57372727 has 2 divisors, whose sum is σ = 57372728. Its totient is φ = 57372726.

The previous prime is 57372719. The next prime is 57372767. The reversal of 57372727 is 72727375.

It is an a-pointer prime, because the next prime (57372767) can be obtained adding 57372727 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57372727 - 2³ = 57372719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57372727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57372767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28686363 + 28686364.

It is an arithmetic number, because the mean of its divisors is an integer number (28686364).

Almost surely, 2^57372727 is an apocalyptic number.

57372727 is a deficient number, since it is larger than the sum of its proper divisors (1).

57372727 is an equidigital number, since it uses as much as digits as its factorization.

57372727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144060, while the sum is 40.

The square root of 57372727 is about 7574.4786619278. The cubic root of 57372727 is about 385.6871452652.

It can be divided in two parts, 5737 and 2727, that added together give a square (8464 = 92²).

The spelling of 57372727 in words is "fifty-seven million, three hundred seventy-two thousand, seven hundred twenty-seven".