551047780 has 24 divisors (see below), whose sum is σ = 1157922360. Its totient is φ = 220281600.

The previous prime is 551047759. The next prime is 551047781. The reversal of 551047780 is 87740155.

It can be written as a sum of positive squares in 4 ways, for example, as 363741184 + 187306596 = 19072^2 + 13686^2 .

It is not an unprimeable number, because it can be changed into a prime (551047781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28080 + ... + 43480.

It is an arithmetic number, because the mean of its divisors is an integer number (48246765).

Almost surely, 2^551047780 is an apocalyptic number.

It is an amenable number.

551047780 is an abundant number, since it is smaller than the sum of its proper divisors (606874580).

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

551047780 is a wasteful number, since it uses less digits than its factorization.

551047780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17199 (or 17197 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 551047780 is about 23474.4069147657. The cubic root of 551047780 is about 819.8412244637.

The spelling of 551047780 in words is "five hundred fifty-one million, forty-seven thousand, seven hundred eighty".