551520132 has 24 divisors (see below), whose sum is σ = 1328393472. Its totient is φ = 177909600.

The previous prime is 551520127. The next prime is 551520133. The reversal of 551520132 is 231025155.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (551520133) 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, 740919 + ... + 741662.

It is an arithmetic number, because the mean of its divisors is an integer number (55349728).

Almost surely, 2^551520132 is an apocalyptic number.

It is an amenable number.

551520132 is an abundant number, since it is smaller than the sum of its proper divisors (776873340).

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

551520132 is a wasteful number, since it uses less digits than its factorization.

551520132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482619 (or 1482617 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 551520132 is about 23484.4657593057. The cubic root of 551520132 is about 820.0754104750.

Adding to 551520132 its reverse (231025155), we get a palindrome (782545287).

The spelling of 551520132 in words is "five hundred fifty-one million, five hundred twenty thousand, one hundred thirty-two".