55753051220 has 12 divisors (see below), whose sum is σ = 117081407604. Its totient is φ = 22301220480.

The previous prime is 55753051219. The next prime is 55753051229. The reversal of 55753051220 is 2215035755.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39930430276 + 15822620944 = 199826^2 + 125788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55753051229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393826261 + ... + 1393826300.

It is an arithmetic number, because the mean of its divisors is an integer number (9756783967).

Almost surely, 2^55753051220 is an apocalyptic number.

It is an amenable number.

55753051220 is an abundant number, since it is smaller than the sum of its proper divisors (61328356384).

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

55753051220 is a wasteful number, since it uses less digits than its factorization.

55753051220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787652570 (or 2787652568 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 35.

Adding to 55753051220 its reverse (2215035755), we get a palindrome (57968086975).

The spelling of 55753051220 in words is "fifty-five billion, seven hundred fifty-three million, fifty-one thousand, two hundred twenty".