551151222 has 32 divisors (see below), whose sum is σ = 1115856000. Its totient is φ = 181468608.

The previous prime is 551151217. The next prime is 551151229. The reversal of 551151222 is 222151155.

It is a junction number, because it is equal to n+sod(n) for n = 551151192 and 551151201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551151229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261529 + ... + 263627.

It is an arithmetic number, because the mean of its divisors is an integer number (34870500).

Almost surely, 2^551151222 is an apocalyptic number.

551151222 is an abundant number, since it is smaller than the sum of its proper divisors (564704778).

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

551151222 is a wasteful number, since it uses less digits than its factorization.

551151222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620.

The product of its digits is 1000, while the sum is 24.

The square root of 551151222 is about 23476.6101045274. The cubic root of 551151222 is about 819.8925211105.

The spelling of 551151222 in words is "five hundred fifty-one million, one hundred fifty-one thousand, two hundred twenty-two".