57916530 has 144 divisors (see below), whose sum is σ = 183104064. Its totient is φ = 12640320.

The previous prime is 57916519. The next prime is 57916543. The reversal of 57916530 is 3561975.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101145 + ... + 101715.

It is an arithmetic number, because the mean of its divisors is an integer number (1271556).

Almost surely, 2^57916530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57916530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91552032).

57916530 is an abundant number, since it is smaller than the sum of its proper divisors (125187534).

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

57916530 is a wasteful number, since it uses less digits than its factorization.

57916530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 57916530 is about 7610.2910588229. The cubic root of 57916530 is about 386.9018840666.

It can be divided in two parts, 5791 and 6530, that added together give a palindrome (12321).

The spelling of 57916530 in words is "fifty-seven million, nine hundred sixteen thousand, five hundred thirty".