57450730 has 16 divisors (see below), whose sum is σ = 103514760. Its totient is φ = 22957312.

The previous prime is 57450713. The next prime is 57450763. The reversal of 57450730 is 3705475.

57450730 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 4 ways, for example, as 55368481 + 2082249 = 7441^2 + 1443^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57450692 and 57450701.

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 7 ways as a sum of consecutive naturals, for example, 10662 + ... + 15118.

Almost surely, 2^57450730 is an apocalyptic number.

57450730 is a deficient number, since it is larger than the sum of its proper divisors (46064030).

57450730 is a wasteful number, since it uses less digits than its factorization.

57450730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5753.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 57450730 is about 7579.6259802183. The cubic root of 57450730 is about 385.8618573744.

The spelling of 57450730 in words is "fifty-seven million, four hundred fifty thousand, seven hundred thirty".