57532230 has 192 divisors, whose sum is σ = 183306240. Its totient is φ = 12241152.

The previous prime is 57532229. The next prime is 57532261. The reversal of 57532230 is 3223575.

57532230 = 3791² + 3792² + ... + 3794².

It is a junction number, because it is equal to n+sod(n) for n = 57532194 and 57532203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 858657 + ... + 858723.

It is an arithmetic number, because the mean of its divisors is an integer number (954720).

Almost surely, 2^57532230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57532230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91653120).

57532230 is an abundant number, since it is smaller than the sum of its proper divisors (125774010).

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

57532230 is a wasteful number, since it uses less digits than its factorization.

57532230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 57532230 is about 7585.0003295979. Note that the first 3 decimals coincide. The cubic root of 57532230 is about 386.0442332550.

The spelling of 57532230 in words is "fifty-seven million, five hundred thirty-two thousand, two hundred thirty".