162521525 has 6 divisors (see below), whose sum is σ = 201526722. Its totient is φ = 130017200.

The previous prime is 162521503. The next prime is 162521531. The reversal of 162521525 is 525125261.

It can be written as a sum of positive squares in 3 ways, for example, as 61009 + 162460516 = 247^2 + 12746^2 .

It is not a de Polignac number, because 162521525 - 2¹⁶ = 162455989 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 3250406 + ... + 3250455.

It is an arithmetic number, because the mean of its divisors is an integer number (33587787).

Almost surely, 2^162521525 is an apocalyptic number.

It is an amenable number.

162521525 is a deficient number, since it is larger than the sum of its proper divisors (39005197).

162521525 is an equidigital number, since it uses as much as digits as its factorization.

162521525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500871 (or 6500866 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 162521525 is about 12748.3930359869. The cubic root of 162521525 is about 545.7205350635.

Adding to 162521525 its reverse (525125261), we get a palindrome (687646786).

The spelling of 162521525 in words is "one hundred sixty-two million, five hundred twenty-one thousand, five hundred twenty-five".