551550532 has 48 divisors (see below), whose sum is σ = 1082524464. Its totient is φ = 244224000.

The previous prime is 551550523. The next prime is 551550539. The reversal of 551550532 is 235055155.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 103550976 + 447999556 = 10176^2 + 21166^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 551550494 and 551550503.

It is not an unprimeable number, because it can be changed into a prime (551550539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127932 + ... + 132172.

It is an arithmetic number, because the mean of its divisors is an integer number (22552593).

Almost surely, 2^551550532 is an apocalyptic number.

551550532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

551550532 is a deficient number, since it is larger than the sum of its proper divisors (530973932).

551550532 is a wasteful number, since it uses less digits than its factorization.

551550532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 551550532 is about 23485.1129867412. The cubic root of 551550532 is about 820.0904778213.

The spelling of 551550532 in words is "five hundred fifty-one million, five hundred fifty thousand, five hundred thirty-two".