57026250 has 120 divisors (see below), whose sum is σ = 159726996. Its totient is φ = 14688000.

The previous prime is 57026243. The next prime is 57026261. The reversal of 57026250 is 5262075.

57026250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 8649 + 57017601 = 93^2 + 7551^2 .

It is a Curzon number.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 416182 + ... + 416318.

Almost surely, 2^57026250 is an apocalyptic number.

57026250 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 57026250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79863498).

57026250 is an abundant number, since it is smaller than the sum of its proper divisors (102700746).

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

57026250 is a wasteful number, since it uses less digits than its factorization.

57026250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 57026250 is about 7551.5726838851. The cubic root of 57026250 is about 384.9091819293.

The spelling of 57026250 in words is "fifty-seven million, twenty-six thousand, two hundred fifty".