52570145 has 4 divisors (see below), whose sum is σ = 63084180. Its totient is φ = 42056112.

The previous prime is 52570139. The next prime is 52570163. The reversal of 52570145 is 54107525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8427409 + 44142736 = 2903^2 + 6644^2 .

It is a cyclic number.

It is not a de Polignac number, because 52570145 - 2⁴ = 52570129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5257010 + ... + 5257019.

It is an arithmetic number, because the mean of its divisors is an integer number (15771045).

Almost surely, 2^52570145 is an apocalyptic number.

It is an amenable number.

52570145 is a deficient number, since it is larger than the sum of its proper divisors (10514035).

52570145 is a wasteful number, since it uses less digits than its factorization.

52570145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514034.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 52570145 is about 7250.5272222094. The cubic root of 52570145 is about 374.6103092573.

The spelling of 52570145 in words is "fifty-two million, five hundred seventy thousand, one hundred forty-five".