152531525 has 18 divisors (see below), whose sum is σ = 199629522. Its totient is φ = 115596000.

The previous prime is 152531479. The next prime is 152531527. The reversal of 152531525 is 525135251.

It can be written as a sum of positive squares in 3 ways, for example, as 53787556 + 98743969 = 7334^2 + 9937^2 .

It is not a de Polignac number, because 152531525 - 2¹⁰ = 152530501 is a prime.

It is a super-2 number, since 2×152531525² = 46531732237651250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152531527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 575 + ... + 17475.

It is an arithmetic number, because the mean of its divisors is an integer number (11090529).

Almost surely, 2^152531525 is an apocalyptic number.

It is an amenable number.

152531525 is a deficient number, since it is larger than the sum of its proper divisors (47097997).

152531525 is a wasteful number, since it uses less digits than its factorization.

152531525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16949 (or 16925 counting only the distinct ones).

The product of its digits is 7500, while the sum is 29.

The square root of 152531525 is about 12350.3653792104. The cubic root of 152531525 is about 534.3016771825.

Adding to 152531525 its reverse (525135251), we get a palindrome (677666776).

The spelling of 152531525 in words is "one hundred fifty-two million, five hundred thirty-one thousand, five hundred twenty-five".