55500505275250 has 64 divisors (see below), whose sum is σ = 123901947965952. Its totient is φ = 18201407928000.

The previous prime is 55500505275179. The next prime is 55500505275253. The reversal of 55500505275250 is 5257250500555.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 55500505275250.

It is not an unprimeable number, because it can be changed into a prime (55500505275253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 689407021 + ... + 689487520.

It is an arithmetic number, because the mean of its divisors is an integer number (1935967936968).

Almost surely, 2^{55500505275250} is an apocalyptic number.

55500505275250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55500505275250 is an abundant number, since it is smaller than the sum of its proper divisors (68401442690702).

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

55500505275250 is a wasteful number, since it uses less digits than its factorization.

55500505275250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378894588 (or 1378894578 counting only the distinct ones).

The product of its (nonzero) digits is 2187500, while the sum is 46.

The spelling of 55500505275250 in words is "fifty-five trillion, five hundred billion, five hundred five million, two hundred seventy-five thousand, two hundred fifty".