8232251557 has 4 divisors (see below), whose sum is σ = 8232433740. Its totient is φ = 8232069376.

The previous prime is 8232251551. The next prime is 8232251569. The reversal of 8232251557 is 7551522328.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2768232996 + 5464018561 = 52614^2 + 73919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8232251557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8232251551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33423 + ... + 132595.

It is an arithmetic number, because the mean of its divisors is an integer number (2058108435).

Almost surely, 2^8232251557 is an apocalyptic number.

It is an amenable number.

8232251557 is a deficient number, since it is larger than the sum of its proper divisors (182183).

8232251557 is an equidigital number, since it uses as much as digits as its factorization.

8232251557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182182.

The product of its digits is 168000, while the sum is 40.

The square root of 8232251557 is about 90731.7560559697. The cubic root of 8232251557 is about 2019.1699655664.

The spelling of 8232251557 in words is "eight billion, two hundred thirty-two million, two hundred fifty-one thousand, five hundred fifty-seven".