552221878000 has 80 divisors (see below), whose sum is σ = 1437985838016. Its totient is φ = 203897299200.

The previous prime is 552221877989. The next prime is 552221878027. The reversal of 552221878000 is 878122255.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10593652 + ... + 10645651.

Almost surely, 2^552221878000 is an apocalyptic number.

552221878000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

552221878000 is an abundant number, since it is smaller than the sum of its proper divisors (885763960016).

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

552221878000 is a wasteful number, since it uses less digits than its factorization.

552221878000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21239339 (or 21239323 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 552221878000 in words is "five hundred fifty-two billion, two hundred twenty-one million, eight hundred seventy-eight thousand".