57037949 has 2 divisors, whose sum is σ = 57037950. Its totient is φ = 57037948.

The previous prime is 57037933. The next prime is 57037951. The reversal of 57037949 is 94973075.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54493924 + 2544025 = 7382^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 57037949 - 2⁴ = 57037933 is a prime.

It is a super-2 number, since 2×57037949² = 6506655252253202, which contains 22 as substring.

Together with 57037951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57037919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28518974 + 28518975.

It is an arithmetic number, because the mean of its divisors is an integer number (28518975).

Almost surely, 2^57037949 is an apocalyptic number.

It is an amenable number.

57037949 is a deficient number, since it is larger than the sum of its proper divisors (1).

57037949 is an equidigital number, since it uses as much as digits as its factorization.

57037949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 57037949 is about 7552.3472510207. The cubic root of 57037949 is about 384.9355016482.

The spelling of 57037949 in words is "fifty-seven million, thirty-seven thousand, nine hundred forty-nine".