554821140 has 24 divisors (see below), whose sum is σ = 1553499360. Its totient is φ = 147952288.

The previous prime is 554821123. The next prime is 554821151. The reversal of 554821140 is 41128455.

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

It is a junction number, because it is equal to n+sod(n) for n = 554821098 and 554821107.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4623450 + ... + 4623569.

It is an arithmetic number, because the mean of its divisors is an integer number (64729140).

Almost surely, 2^554821140 is an apocalyptic number.

It is an amenable number.

554821140 is an abundant number, since it is smaller than the sum of its proper divisors (998678220).

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

554821140 is a wasteful number, since it uses less digits than its factorization.

554821140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247031 (or 9247029 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 554821140 is about 23554.6415808010. The cubic root of 554821140 is about 821.7082868010.

Adding to 554821140 its reverse (41128455), we get a palindrome (595949595).

The spelling of 554821140 in words is "five hundred fifty-four million, eight hundred twenty-one thousand, one hundred forty".