57152229 has 4 divisors (see below), whose sum is σ = 76202976. Its totient is φ = 38101484.

The previous prime is 57152219. The next prime is 57152233. The reversal of 57152229 is 92225175.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57152229 - 2⁵ = 57152197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57152229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57152219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9525369 + ... + 9525374.

It is an arithmetic number, because the mean of its divisors is an integer number (19050744).

Almost surely, 2^57152229 is an apocalyptic number.

It is an amenable number.

57152229 is a deficient number, since it is larger than the sum of its proper divisors (19050747).

57152229 is a wasteful number, since it uses less digits than its factorization.

57152229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19050746.

The product of its digits is 12600, while the sum is 33.

The square root of 57152229 is about 7559.9093248530. The cubic root of 57152229 is about 385.1924129569.

The spelling of 57152229 in words is "fifty-seven million, one hundred fifty-two thousand, two hundred twenty-nine".