1550223263 has 2 divisors, whose sum is σ = 1550223264. Its totient is φ = 1550223262.

The previous prime is 1550223247. The next prime is 1550223307. The reversal of 1550223263 is 3623220551.

It is a weak prime.

It is an emirp because it is prime and its reverse (3623220551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1550223263 - 2⁴ = 1550223247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550223203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775111631 + 775111632.

It is an arithmetic number, because the mean of its divisors is an integer number (775111632).

Almost surely, 2^1550223263 is an apocalyptic number.

1550223263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550223263 is an equidigital number, since it uses as much as digits as its factorization.

1550223263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1550223263 is about 39372.8747108971. The cubic root of 1550223263 is about 1157.3500904120.

The spelling of 1550223263 in words is "one billion, five hundred fifty million, two hundred twenty-three thousand, two hundred sixty-three".