554051820 has 144 divisors (see below), whose sum is σ = 1815609600. Its totient is φ = 125870976.

The previous prime is 554051783. The next prime is 554051863. The reversal of 554051820 is 28150455.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 584587 + ... + 585533.

It is an arithmetic number, because the mean of its divisors is an integer number (12608400).

Almost surely, 2^554051820 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 554051820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907804800).

554051820 is an abundant number, since it is smaller than the sum of its proper divisors (1261557780).

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

554051820 is a wasteful number, since it uses less digits than its factorization.

554051820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 554051820 is about 23538.3053765559. The cubic root of 554051820 is about 821.3283150807.

The spelling of 554051820 in words is "five hundred fifty-four million, fifty-one thousand, eight hundred twenty".