525570145 has 8 divisors (see below), whose sum is σ = 630852840. Its totient is φ = 420343680.

The previous prime is 525570131. The next prime is 525570151. The reversal of 525570145 is 541075525.

It can be written as a sum of positive squares in 4 ways, for example, as 17698849 + 507871296 = 4207^2 + 22536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 525570145 - 2⁹ = 525569633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525570145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10371 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (78856605).

Almost surely, 2^525570145 is an apocalyptic number.

It is an amenable number.

525570145 is a deficient number, since it is larger than the sum of its proper divisors (105282695).

525570145 is a wasteful number, since it uses less digits than its factorization.

525570145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28115.

The product of its (nonzero) digits is 35000, while the sum is 34.

The square root of 525570145 is about 22925.3166826546. The cubic root of 525570145 is about 807.0062453867.

The spelling of 525570145 in words is "five hundred twenty-five million, five hundred seventy thousand, one hundred forty-five".