551325516 has 96 divisors (see below), whose sum is σ = 1499258880. Its totient is φ = 154440000.

The previous prime is 551325497. The next prime is 551325517. The reversal of 551325516 is 615523155.

It is not an unprimeable number, because it can be changed into a prime (551325517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1665471 + ... + 1665801.

It is an arithmetic number, because the mean of its divisors is an integer number (15617280).

Almost surely, 2^551325516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551325516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749629440).

551325516 is an abundant number, since it is smaller than the sum of its proper divisors (947933364).

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

551325516 is a wasteful number, since it uses less digits than its factorization.

551325516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 673 counting only the distinct ones).

The product of its digits is 22500, while the sum is 33.

The square root of 551325516 is about 23480.3218887646. The cubic root of 551325516 is about 819.9789385826.

The spelling of 551325516 in words is "five hundred fifty-one million, three hundred twenty-five thousand, five hundred sixteen".