551965227 has 32 divisors (see below), whose sum is σ = 825237504. Its totient is φ = 325293600.

The previous prime is 551965217. The next prime is 551965259. The reversal of 551965227 is 722569155.

It is not a de Polignac number, because 551965227 - 2¹² = 551961131 is a prime.

It is a super-2 number, since 2×551965227² = 609331223634323058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551965217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257952 + ... + 260082.

It is an arithmetic number, because the mean of its divisors is an integer number (25788672).

Almost surely, 2^551965227 is an apocalyptic number.

551965227 is a deficient number, since it is larger than the sum of its proper divisors (273272277).

551965227 is a wasteful number, since it uses less digits than its factorization.

551965227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359.

The product of its digits is 189000, while the sum is 42.

The square root of 551965227 is about 23493.9402187032. The cubic root of 551965227 is about 820.2959604879.

The spelling of 551965227 in words is "five hundred fifty-one million, nine hundred sixty-five thousand, two hundred twenty-seven".