551403532 has 12 divisors (see below), whose sum is σ = 973809760. Its totient is φ = 273172176.

The previous prime is 551403527. The next prime is 551403533. The reversal of 551403532 is 235304155.

It is a self number, because there is not a number n which added to its sum of digits gives 551403532.

It is not an unprimeable number, because it can be changed into a prime (551403533) 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 3 ways as a sum of consecutive naturals, for example, 631908 + ... + 632779.

Almost surely, 2^551403532 is an apocalyptic number.

It is an amenable number.

551403532 is a deficient number, since it is larger than the sum of its proper divisors (422406228).

551403532 is a wasteful number, since it uses less digits than its factorization.

551403532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264800 (or 1264798 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 551403532 is about 23481.9831360130. The cubic root of 551403532 is about 820.0176141368.

Adding to 551403532 its reverse (235304155), we get a palindrome (786707687).

The spelling of 551403532 in words is "five hundred fifty-one million, four hundred three thousand, five hundred thirty-two".