55266391000 has 64 divisors (see below), whose sum is σ = 129363324480. Its totient is φ = 22099724800.

The previous prime is 55266390979. The next prime is 55266391003. The reversal of 55266391000 is 19366255.

55266391000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55266391003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4330629 + ... + 4343371.

It is an arithmetic number, because the mean of its divisors is an integer number (2021301945).

Almost surely, 2^55266391000 is an apocalyptic number.

55266391000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55266391000 is an abundant number, since it is smaller than the sum of its proper divisors (74096933480).

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

55266391000 is a wasteful number, since it uses less digits than its factorization.

55266391000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17101 (or 17087 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 55266391000 in words is "fifty-five billion, two hundred sixty-six million, three hundred ninety-one thousand".