550255801 has 2 divisors, whose sum is σ = 550255802. Its totient is φ = 550255800.

The previous prime is 550255787. The next prime is 550255817. The reversal of 550255801 is 108552055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465523776 + 84732025 = 21576^2 + 9205^2 .

It is a cyclic number.

It is not a de Polignac number, because 550255801 - 2²⁵ = 516701369 is a prime.

It is not a weakly prime, because it can be changed into another prime (550205801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275127900 + 275127901.

It is an arithmetic number, because the mean of its divisors is an integer number (275127901).

Almost surely, 2^550255801 is an apocalyptic number.

It is an amenable number.

550255801 is a deficient number, since it is larger than the sum of its proper divisors (1).

550255801 is an equidigital number, since it uses as much as digits as its factorization.

550255801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 550255801 is about 23457.5318607905. The cubic root of 550255801 is about 819.4482710351.

The spelling of 550255801 in words is "five hundred fifty million, two hundred fifty-five thousand, eight hundred one".