55055522240 has 56 divisors (see below), whose sum is σ = 131209615152. Its totient is φ = 22003957760.

The previous prime is 55055522239. The next prime is 55055522279. The reversal of 55055522240 is 4222555055.

It is a super-2 number, since 2×55055522240² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55055522240.

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, 318755 + ... + 460125.

It is an arithmetic number, because the mean of its divisors is an integer number (2343028842).

Almost surely, 2^55055522240 is an apocalyptic number.

It is an amenable number.

55055522240 is an abundant number, since it is smaller than the sum of its proper divisors (76154092912).

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

55055522240 is a wasteful number, since it uses less digits than its factorization.

55055522240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142605 (or 142595 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 35.

The spelling of 55055522240 in words is "fifty-five billion, fifty-five million, five hundred twenty-two thousand, two hundred forty".