57300391 has 2 divisors, whose sum is σ = 57300392. Its totient is φ = 57300390.

The previous prime is 57300377. The next prime is 57300407. The reversal of 57300391 is 19300375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57300391 - 2⁷ = 57300263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57300301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28650195 + 28650196.

It is an arithmetic number, because the mean of its divisors is an integer number (28650196).

Almost surely, 2^57300391 is an apocalyptic number.

57300391 is the 4788-th centered pentagonal number.

57300391 is a deficient number, since it is larger than the sum of its proper divisors (1).

57300391 is an equidigital number, since it uses as much as digits as its factorization.

57300391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 57300391 is about 7569.7021737979. The cubic root of 57300391 is about 385.5249846002.

The spelling of 57300391 in words is "fifty-seven million, three hundred thousand, three hundred ninety-one".