57245145 has 16 divisors (see below), whose sum is σ = 93095232. Its totient is φ = 30029760.

The previous prime is 57245131. The next prime is 57245173. The reversal of 57245145 is 54154275.

It is not a de Polignac number, because 57245145 - 2⁵ = 57245113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30367 + ... + 32196.

It is an arithmetic number, because the mean of its divisors is an integer number (5818452).

Almost surely, 2^57245145 is an apocalyptic number.

It is an amenable number.

57245145 is a deficient number, since it is larger than the sum of its proper divisors (35850087).

57245145 is a wasteful number, since it uses less digits than its factorization.

57245145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62632.

The product of its digits is 28000, while the sum is 33.

The square root of 57245145 is about 7566.0521409781. The cubic root of 57245145 is about 385.4010438404.

The spelling of 57245145 in words is "fifty-seven million, two hundred forty-five thousand, one hundred forty-five".