550078000 has 40 divisors (see below), whose sum is σ = 1330093440. Its totient is φ = 220030400.

The previous prime is 550077971. The next prime is 550078019. The reversal of 550078000 is 870055.

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

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135520 + ... + 139519.

It is an arithmetic number, because the mean of its divisors is an integer number (33252336).

Almost surely, 2^550078000 is an apocalyptic number.

550078000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550078000 is an abundant number, since it is smaller than the sum of its proper divisors (780015440).

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

550078000 is a wasteful number, since it uses less digits than its factorization.

550078000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275062 (or 275046 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 550078000 is about 23453.7417057492. The cubic root of 550078000 is about 819.3600003208.

The spelling of 550078000 in words is "five hundred fifty million, seventy-eight thousand".