57129322 has 8 divisors (see below), whose sum is σ = 85822596. Its totient is φ = 28521792.

The previous prime is 57129313. The next prime is 57129329. The reversal of 57129322 is 22392175.

It can be written as a sum of positive squares in 2 ways, for example, as 49126081 + 8003241 = 7009^2 + 2829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (57129329) 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, 19743 + ... + 22450.

Almost surely, 2^57129322 is an apocalyptic number.

57129322 is a deficient number, since it is larger than the sum of its proper divisors (28693274).

57129322 is a wasteful number, since it uses less digits than its factorization.

57129322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42872.

The product of its digits is 7560, while the sum is 31.

The square root of 57129322 is about 7558.3941416150. The cubic root of 57129322 is about 385.1409435049.

The spelling of 57129322 in words is "fifty-seven million, one hundred twenty-nine thousand, three hundred twenty-two".