57242629 has 2 divisors, whose sum is σ = 57242630. Its totient is φ = 57242628.

The previous prime is 57242623. The next prime is 57242681. The reversal of 57242629 is 92624275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 2512225 = 7398^2 + 1585^2 .

It is a cyclic number.

It is not a de Polignac number, because 57242629 - 2¹⁵ = 57209861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57242623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621314 + 28621315.

It is an arithmetic number, because the mean of its divisors is an integer number (28621315).

Almost surely, 2^57242629 is an apocalyptic number.

It is an amenable number.

57242629 is a deficient number, since it is larger than the sum of its proper divisors (1).

57242629 is an equidigital number, since it uses as much as digits as its factorization.

57242629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 57242629 is about 7565.8858701411. The cubic root of 57242629 is about 385.3953974621.

The spelling of 57242629 in words is "fifty-seven million, two hundred forty-two thousand, six hundred twenty-nine".