551111268 has 24 divisors (see below), whose sum is σ = 1302206080. Its totient is φ = 181378080.

The previous prime is 551111261. The next prime is 551111269. The reversal of 551111268 is 862111155.

It is not an unprimeable number, because it can be changed into a prime (551111261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289723 + ... + 291618.

Almost surely, 2^551111268 is an apocalyptic number.

It is an amenable number.

551111268 is an abundant number, since it is smaller than the sum of its proper divisors (751094812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551111268 is a wasteful number, since it uses less digits than its factorization.

551111268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581427 (or 581425 counting only the distinct ones).

The product of its digits is 2400, while the sum is 30.

The square root of 551111268 is about 23475.7591570539. The cubic root of 551111268 is about 819.8727087758.

The spelling of 551111268 in words is "five hundred fifty-one million, one hundred eleven thousand, two hundred sixty-eight".