57861500 has 48 divisors (see below), whose sum is σ = 130480896. Its totient is φ = 22392000.

The previous prime is 57861499. The next prime is 57861509. The reversal of 57861500 is 516875.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57861509) 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, 13634 + ... + 17366.

It is an arithmetic number, because the mean of its divisors is an integer number (2718352).

Almost surely, 2^57861500 is an apocalyptic number.

57861500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57861500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65240448).

57861500 is an abundant number, since it is smaller than the sum of its proper divisors (72619396).

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

57861500 is a wasteful number, since it uses less digits than its factorization.

57861500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783 (or 3771 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 57861500 is about 7606.6747005508. The cubic root of 57861500 is about 386.7793056041.

The spelling of 57861500 in words is "fifty-seven million, eight hundred sixty-one thousand, five hundred".