57253109 has 2 divisors, whose sum is σ = 57253110. Its totient is φ = 57253108.

The previous prime is 57253103. The next prime is 57253199. The reversal of 57253109 is 90135275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45024100 + 12229009 = 6710^2 + 3497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57253109 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 (57253103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28626554 + 28626555.

It is an arithmetic number, because the mean of its divisors is an integer number (28626555).

Almost surely, 2^57253109 is an apocalyptic number.

It is an amenable number.

57253109 is a deficient number, since it is larger than the sum of its proper divisors (1).

57253109 is an equidigital number, since it uses as much as digits as its factorization.

57253109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 57253109 is about 7566.5784209245. The cubic root of 57253109 is about 385.4189154671.

The spelling of 57253109 in words is "fifty-seven million, two hundred fifty-three thousand, one hundred nine".