551504022 has 16 divisors (see below), whose sum is σ = 1103274432. Its totient is φ = 183790280.

The previous prime is 551503961. The next prime is 551504027. The reversal of 551504022 is 220405155.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 551503983 and 551504001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551504027) 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, 24697 + ... + 41387.

It is an arithmetic number, because the mean of its divisors is an integer number (68954652).

Almost surely, 2^551504022 is an apocalyptic number.

551504022 is an abundant number, since it is smaller than the sum of its proper divisors (551770410).

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

551504022 is a wasteful number, since it uses less digits than its factorization.

551504022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22203.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 551504022 is about 23484.1227641145. The cubic root of 551504022 is about 820.0674255483.

Adding to 551504022 its reverse (220405155), we get a palindrome (771909177).

The spelling of 551504022 in words is "five hundred fifty-one million, five hundred four thousand, twenty-two".