57237109 has 2 divisors, whose sum is σ = 57237110. Its totient is φ = 57237108.

The previous prime is 57237083. The next prime is 57237119. The reversal of 57237109 is 90173275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 20295025 = 6078^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 57237109 - 2⁵ = 57237077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57237119) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28618554 + 28618555.

It is an arithmetic number, because the mean of its divisors is an integer number (28618555).

Almost surely, 2^57237109 is an apocalyptic number.

It is an amenable number.

57237109 is a deficient number, since it is larger than the sum of its proper divisors (1).

57237109 is an equidigital number, since it uses as much as digits as its factorization.

57237109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 57237109 is about 7565.5210659941. The cubic root of 57237109 is about 385.3830089618.

The spelling of 57237109 in words is "fifty-seven million, two hundred thirty-seven thousand, one hundred nine".