2528522165 has 8 divisors (see below), whose sum is σ = 3267628728. Its totient is φ = 1867216320.

The previous prime is 2528522141. The next prime is 2528522167. The reversal of 2528522165 is 5612258252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 152349649 + 2376172516 = 12343^2 + 48746^2 .

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

It is not a de Polignac number, because 2528522165 - 2¹⁴ = 2528505781 is a prime.

It is a super-4 number, since 4×2528522165⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528522167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19450106 + ... + 19450235.

It is an arithmetic number, because the mean of its divisors is an integer number (408453591).

Almost surely, 2^2528522165 is an apocalyptic number.

It is an amenable number.

2528522165 is a deficient number, since it is larger than the sum of its proper divisors (739106563).

2528522165 is a wasteful number, since it uses less digits than its factorization.

2528522165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38900359.

The product of its digits is 96000, while the sum is 38.

The square root of 2528522165 is about 50284.4127439110. The cubic root of 2528522165 is about 1362.3507076554.

The spelling of 2528522165 in words is "two billion, five hundred twenty-eight million, five hundred twenty-two thousand, one hundred sixty-five".