57731622 has 32 divisors (see below), whose sum is σ = 126212352. Its totient is φ = 17496864.

The previous prime is 57731621. The next prime is 57731627. The reversal of 57731622 is 22613775.

57731622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57731621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298 + ... + 10749.

It is an arithmetic number, because the mean of its divisors is an integer number (3944136).

Almost surely, 2^57731622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57731622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63106176).

57731622 is an abundant number, since it is smaller than the sum of its proper divisors (68480730).

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

57731622 is a wasteful number, since it uses less digits than its factorization.

57731622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132.

The product of its digits is 17640, while the sum is 33.

The square root of 57731622 is about 7598.1327969443. The cubic root of 57731622 is about 386.4896959018.

The spelling of 57731622 in words is "fifty-seven million, seven hundred thirty-one thousand, six hundred twenty-two".