232820304557 has 2 divisors, whose sum is σ = 232820304558. Its totient is φ = 232820304556.

The previous prime is 232820304553. The next prime is 232820304571. The reversal of 232820304557 is 755403028232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184080470116 + 48739834441 = 429046^2 + 220771^2 .

It is a cyclic number.

It is not a de Polignac number, because 232820304557 - 2² = 232820304553 is a prime.

It is a super-4 number, since 4×232820304557⁴ (a number of 47 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232820304553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116410152278 + 116410152279.

It is an arithmetic number, because the mean of its divisors is an integer number (116410152279).

Almost surely, 2^232820304557 is an apocalyptic number.

It is an amenable number.

232820304557 is a deficient number, since it is larger than the sum of its proper divisors (1).

232820304557 is an equidigital number, since it uses as much as digits as its factorization.

232820304557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 232820304557 in words is "two hundred thirty-two billion, eight hundred twenty million, three hundred four thousand, five hundred fifty-seven".