55055500550620 has 48 divisors (see below), whose sum is σ = 117341613966528. Its totient is φ = 21694128261120.

The previous prime is 55055500550459. The next prime is 55055500550629. The reversal of 55055500550620 is 2605500555055.

It is a super-2 number, since 2×55055500550620² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055500550629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14259189 + ... + 17704108.

It is an arithmetic number, because the mean of its divisors is an integer number (2444616957636).

Almost surely, 2^{55055500550620} is an apocalyptic number.

It is an amenable number.

55055500550620 is an abundant number, since it is smaller than the sum of its proper divisors (62286113415908).

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

55055500550620 is a wasteful number, since it uses less digits than its factorization.

55055500550620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31964590 (or 31964588 counting only the distinct ones).

The product of its (nonzero) digits is 937500, while the sum is 43.

The spelling of 55055500550620 in words is "fifty-five trillion, fifty-five billion, five hundred million, five hundred fifty thousand, six hundred twenty".