57250746 has 64 divisors (see below), whose sum is σ = 146165760. Its totient is φ = 16271280.

The previous prime is 57250741. The next prime is 57250751. The reversal of 57250746 is 64705275.

It is an interprime number because it is at equal distance from previous prime (57250741) and next prime (57250751).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57250746.

It is not an unprimeable number, because it can be changed into a prime (57250741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117315 + ... + 117801.

It is an arithmetic number, because the mean of its divisors is an integer number (2283840).

Almost surely, 2^57250746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57250746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73082880).

57250746 is an abundant number, since it is smaller than the sum of its proper divisors (88915014).

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

57250746 is a wasteful number, since it uses less digits than its factorization.

57250746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 57250746 is about 7566.4222721178. The cubic root of 57250746 is about 385.4136129462.

The spelling of 57250746 in words is "fifty-seven million, two hundred fifty thousand, seven hundred forty-six".