57117450 has 96 divisors (see below), whose sum is σ = 161614656. Its totient is φ = 13224960.

The previous prime is 57117367. The next prime is 57117451. The reversal of 57117450 is 5471175.

57117450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (57117451) 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 47 ways as a sum of consecutive naturals, for example, 32289 + ... + 34011.

It is an arithmetic number, because the mean of its divisors is an integer number (1683486).

Almost surely, 2^57117450 is an apocalyptic number.

57117450 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 57117450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80807328).

57117450 is an abundant number, since it is smaller than the sum of its proper divisors (104497206).

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

57117450 is a wasteful number, since it uses less digits than its factorization.

57117450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 57117450 is about 7557.6087488041. The cubic root of 57117450 is about 385.1142630433.

The spelling of 57117450 in words is "fifty-seven million, one hundred seventeen thousand, four hundred fifty".