55501000280 has 64 divisors (see below), whose sum is σ = 138538771200. Its totient is φ = 19840101760.

The previous prime is 55501000277. The next prime is 55501000283. The reversal of 55501000280 is 8200010555.

It is an interprime number because it is at equal distance from previous prime (55501000277) and next prime (55501000283).

It is a super-2 number, since 2×55501000280² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501000283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043012 + ... + 1094931.

It is an arithmetic number, because the mean of its divisors is an integer number (2164668300).

Almost surely, 2^55501000280 is an apocalyptic number.

It is an amenable number.

55501000280 is an abundant number, since it is smaller than the sum of its proper divisors (83037770920).

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

55501000280 is a wasteful number, since it uses less digits than its factorization.

55501000280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138024 (or 2138020 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 55501000280 in words is "fifty-five billion, five hundred one million, two hundred eighty", and thus it is an aban number.