55228261250 has 150 divisors (see below), whose sum is σ = 114979850139. Its totient is φ = 19887824000.

The previous prime is 55228261213. The next prime is 55228261261. The reversal of 55228261250 is 5216282255.

It is a happy number.

It can be written as a sum of positive squares in 13 ways, for example, as 11700532561 + 43527728689 = 108169^2 + 208633^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166175.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 2401228739 + ... + 2401228761.

Almost surely, 2^55228261250 is an apocalyptic number.

55228261250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55228261250 is an abundant number, since it is smaller than the sum of its proper divisors (59751588889).

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

55228261250 is an frugal number, since it uses more digits than its factorization.

55228261250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 55228261250 in words is "fifty-five billion, two hundred twenty-eight million, two hundred sixty-one thousand, two hundred fifty".