57109722 has 32 divisors (see below), whose sum is σ = 118063872. Its totient is φ = 18402624.

The previous prime is 57109721. The next prime is 57109751. The reversal of 57109722 is 22790175.

It is not an unprimeable number, because it can be changed into a prime (57109721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37663 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (3689496).

Almost surely, 2^57109722 is an apocalyptic number.

57109722 is an abundant number, since it is smaller than the sum of its proper divisors (60954150).

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

57109722 is a wasteful number, since it uses less digits than its factorization.

57109722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 57109722 is about 7557.0974586808. The cubic root of 57109722 is about 385.0968935864.

Adding to 57109722 its reverse (22790175), we get a palindrome (79899897).

The spelling of 57109722 in words is "fifty-seven million, one hundred nine thousand, seven hundred twenty-two".