57145722 has 16 divisors (see below), whose sum is σ = 114419520. Its totient is φ = 19027232.

The previous prime is 57145709. The next prime is 57145729. The reversal of 57145722 is 22754175.

It is not an unprimeable number, because it can be changed into a prime (57145729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054 + ... + 10742.

It is an arithmetic number, because the mean of its divisors is an integer number (7151220).

Almost surely, 2^57145722 is an apocalyptic number.

57145722 is an abundant number, since it is smaller than the sum of its proper divisors (57273798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57145722 is a wasteful number, since it uses less digits than its factorization.

57145722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10677.

The product of its digits is 19600, while the sum is 33.

The square root of 57145722 is about 7559.4789502981. The cubic root of 57145722 is about 385.1777938586.

Adding to 57145722 its reverse (22754175), we get a palindrome (79899897).

The spelling of 57145722 in words is "fifty-seven million, one hundred forty-five thousand, seven hundred twenty-two".