57881250 has 192 divisors, whose sum is σ = 187488000. Its totient is φ = 13230000.

The previous prime is 57881249. The next prime is 57881251. The reversal of 57881250 is 5218875.

57881250 is a `hidden beast` number, since 578 + 81 + 2 + 5 + 0 = 666.

57881250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57881249) and next prime (57881251).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57881251) 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 95 ways as a sum of consecutive naturals, for example, 8268747 + ... + 8268753.

It is an arithmetic number, because the mean of its divisors is an integer number (976500).

Almost surely, 2^57881250 is an apocalyptic number.

57881250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57881250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93744000).

57881250 is an abundant number, since it is smaller than the sum of its proper divisors (129606750).

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

57881250 is an frugal number, since it uses more digits than its factorization.

57881250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 57881250 is about 7607.9727917495. The cubic root of 57881250 is about 386.8233073572.

The spelling of 57881250 in words is "fifty-seven million, eight hundred eighty-one thousand, two hundred fifty".