57031250 has 36 divisors (see below), whose sum is σ = 108398382. Its totient is φ = 22500000.

The previous prime is 57031241. The next prime is 57031259. The reversal of 57031250 is 5213075.

57031250 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 (57031241) and next prime (57031259).

It can be written as a sum of positive squares in 9 ways, for example, as 55905529 + 1125721 = 7477^2 + 1061^2 .

It is not an unprimeable number, because it can be changed into a prime (57031259) 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 17 ways as a sum of consecutive naturals, for example, 781214 + ... + 781286.

Almost surely, 2^57031250 is an apocalyptic number.

57031250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57031250 is a deficient number, since it is larger than the sum of its proper divisors (51367132).

57031250 is an frugal number, since it uses more digits than its factorization.

57031250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 57031250 is about 7551.9037334966. The cubic root of 57031250 is about 384.9204310743.

It can be divided in two parts, 570312 and 50, that multiplied together give a square (28515600 = 5340²).

The spelling of 57031250 in words is "fifty-seven million, thirty-one thousand, two hundred fifty".