57550145 has 16 divisors (see below), whose sum is σ = 73894080. Its totient is φ = 42897600.

The previous prime is 57550139. The next prime is 57550153. The reversal of 57550145 is 54105575.

It is not a de Polignac number, because 57550145 - 2⁶ = 57550081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830 + ... + 10760.

It is an arithmetic number, because the mean of its divisors is an integer number (4618380).

Almost surely, 2^57550145 is an apocalyptic number.

It is an amenable number.

57550145 is a deficient number, since it is larger than the sum of its proper divisors (16343935).

57550145 is a wasteful number, since it uses less digits than its factorization.

57550145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 57550145 is about 7586.1811868687. The cubic root of 57550145 is about 386.0842992882.

The spelling of 57550145 in words is "fifty-seven million, five hundred fifty thousand, one hundred forty-five".