8557345801 has 2 divisors, whose sum is σ = 8557345802. Its totient is φ = 8557345800.

The previous prime is 8557345757. The next prime is 8557345813. The reversal of 8557345801 is 1085437558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4585321225 + 3972024576 = 67715^2 + 63024^2 .

It is a cyclic number.

It is not a de Polignac number, because 8557345801 - 2⁷ = 8557345673 is a prime.

It is not a weakly prime, because it can be changed into another prime (8557345861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4278672900 + 4278672901.

It is an arithmetic number, because the mean of its divisors is an integer number (4278672901).

Almost surely, 2^8557345801 is an apocalyptic number.

It is an amenable number.

8557345801 is a deficient number, since it is larger than the sum of its proper divisors (1).

8557345801 is an equidigital number, since it uses as much as digits as its factorization.

8557345801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 8557345801 is about 92505.9230590128. The cubic root of 8557345801 is about 2045.4067934161.

The spelling of 8557345801 in words is "eight billion, five hundred fifty-seven million, three hundred forty-five thousand, eight hundred one".