57752500 has 60 divisors (see below), whose sum is σ = 136084564. Its totient is φ = 21312000.

The previous prime is 57752491. The next prime is 57752503. The reversal of 57752500 is 525775.

It can be written as a sum of positive squares in 10 ways, for example, as 52388644 + 5363856 = 7238^2 + 2316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57752503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31612 + ... + 33388.

Almost surely, 2^57752500 is an apocalyptic number.

57752500 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 57752500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68042282).

57752500 is an abundant number, since it is smaller than the sum of its proper divisors (78332064).

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

57752500 is a wasteful number, since it uses less digits than its factorization.

57752500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 57752500 is about 7599.5065629289. The cubic root of 57752500 is about 386.5362801889.

The spelling of 57752500 in words is "fifty-seven million, seven hundred fifty-two thousand, five hundred".