157825836529 has 9 divisors (see below), whose sum is σ = 167662994017. Its totient is φ = 148535607424.

The previous prime is 157825836523. The next prime is 157825836557. The reversal of 157825836529 is 925638528751.

The square root of 157825836529 is 397273.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3339106225 + 154486730304 = 57785^2 + 393048^2 .

It is not a de Polignac number, because 157825836529 - 2²⁷ = 157691618801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157825836523) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6741957 + ... + 6765325.

Almost surely, 2^157825836529 is an apocalyptic number.

157825836529 is the 397273-rd square number.

157825836529 is the 198637-th centered octagonal number.

It is an amenable number.

157825836529 is a deficient number, since it is larger than the sum of its proper divisors (9837157488).

157825836529 is an frugal number, since it uses more digits than its factorization.

157825836529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46772 (or 23386 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 61.

The spelling of 157825836529 in words is "one hundred fifty-seven billion, eight hundred twenty-five million, eight hundred thirty-six thousand, five hundred twenty-nine".