55253784500 has 24 divisors (see below), whose sum is σ = 120674266440. Its totient is φ = 22101513600.

The previous prime is 55253784491. The next prime is 55253784533. The reversal of 55253784500 is 548735255.

It can be written as a sum of positive squares in 4 ways, for example, as 8165652496 + 47088132004 = 90364^2 + 216998^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55253285 + ... + 55254284.

It is an arithmetic number, because the mean of its divisors is an integer number (5028094435).

Almost surely, 2^55253784500 is an apocalyptic number.

55253784500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55253784500 is an abundant number, since it is smaller than the sum of its proper divisors (65420481940).

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

55253784500 is a wasteful number, since it uses less digits than its factorization.

55253784500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110507588 (or 110507576 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 55253784500 in words is "fifty-five billion, two hundred fifty-three million, seven hundred eighty-four thousand, five hundred".