57069269 has 2 divisors, whose sum is σ = 57069270. Its totient is φ = 57069268.

The previous prime is 57069263. The next prime is 57069307. The reversal of 57069269 is 96296075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56445169 + 624100 = 7513^2 + 790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57069269 is a prime.

It is a super-2 number, since 2×57069269² = 6513802928388722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57069263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28534634 + 28534635.

It is an arithmetic number, because the mean of its divisors is an integer number (28534635).

Almost surely, 2^57069269 is an apocalyptic number.

It is an amenable number.

57069269 is a deficient number, since it is larger than the sum of its proper divisors (1).

57069269 is an equidigital number, since it uses as much as digits as its factorization.

57069269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 57069269 is about 7554.4204939889. The cubic root of 57069269 is about 385.0059458237.

The spelling of 57069269 in words is "fifty-seven million, sixty-nine thousand, two hundred sixty-nine".