551225508 has 48 divisors (see below), whose sum is σ = 1331925504. Its totient is φ = 177246720.

The previous prime is 551225501. The next prime is 551225509. The reversal of 551225508 is 805522155.

It is not an unprimeable number, because it can be changed into a prime (551225501) 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 15 ways as a sum of consecutive naturals, for example, 123166 + ... + 127562.

It is an arithmetic number, because the mean of its divisors is an integer number (27748448).

Almost surely, 2^551225508 is an apocalyptic number.

It is an amenable number.

551225508 is an abundant number, since it is smaller than the sum of its proper divisors (780699996).

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

551225508 is a wasteful number, since it uses less digits than its factorization.

551225508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772 (or 4770 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 551225508 is about 23478.1921791266. The cubic root of 551225508 is about 819.9293554052.

The spelling of 551225508 in words is "five hundred fifty-one million, two hundred twenty-five thousand, five hundred eight".