80161525 has 12 divisors (see below), whose sum is σ = 99519300. Its totient is φ = 64052480.

The previous prime is 80161451. The next prime is 80161561. The reversal of 80161525 is 52516108.

It can be written as a sum of positive squares in 6 ways, for example, as 2686321 + 77475204 = 1639^2 + 8802^2 .

It is not a de Polignac number, because 80161525 - 2¹¹ = 80159477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80161493 and 80161502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29421 + ... + 32029.

It is an arithmetic number, because the mean of its divisors is an integer number (8293275).

Almost surely, 2^80161525 is an apocalyptic number.

It is an amenable number.

80161525 is a deficient number, since it is larger than the sum of its proper divisors (19357775).

80161525 is a wasteful number, since it uses less digits than its factorization.

80161525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 80161525 is about 8953.2968788039. The cubic root of 80161525 is about 431.1767389378.

It can be divided in two parts, 801 and 61525, that added together give a palindrome (62326).

The spelling of 80161525 in words is "eighty million, one hundred sixty-one thousand, five hundred twenty-five".