551820152 has 48 divisors (see below), whose sum is σ = 1138911480. Its totient is φ = 250473600.

The previous prime is 551820151. The next prime is 551820167. The reversal of 551820152 is 251028155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551820151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79127 + ... + 85817.

Almost surely, 2^551820152 is an apocalyptic number.

551820152 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551820152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569455740).

551820152 is an abundant number, since it is smaller than the sum of its proper divisors (587091328).

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

551820152 is a wasteful number, since it uses less digits than its factorization.

551820152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784 (or 6767 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 551820152 is about 23490.8525175226. The cubic root of 551820152 is about 820.2240870810.

The spelling of 551820152 in words is "five hundred fifty-one million, eight hundred twenty thousand, one hundred fifty-two".