550553840 has 40 divisors (see below), whose sum is σ = 1355337360. Its totient is φ = 207266816.

The previous prime is 550553837. The next prime is 550553869. The reversal of 550553840 is 48355055.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 550553840.

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, 201050 + ... + 203769.

It is an arithmetic number, because the mean of its divisors is an integer number (33883434).

Almost surely, 2^550553840 is an apocalyptic number.

It is an amenable number.

550553840 is an abundant number, since it is smaller than the sum of its proper divisors (804783520).

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

550553840 is a wasteful number, since it uses less digits than its factorization.

550553840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404849 (or 404843 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 550553840 is about 23463.8837365002. The cubic root of 550553840 is about 819.5961922152.

The spelling of 550553840 in words is "five hundred fifty million, five hundred fifty-three thousand, eight hundred forty".