55233244374620 has 192 divisors, whose sum is σ = 129948208782336. Its totient is φ = 19589187502080.

The previous prime is 55233244374613. The next prime is 55233244374709. The reversal of 55233244374620 is 2647344233255.

It is a super-2 number, since 2×55233244374620² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199427477 + ... + 199704243.

It is an arithmetic number, because the mean of its divisors is an integer number (676813587408).

Almost surely, 2^{55233244374620} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55233244374620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64974104391168).

55233244374620 is an abundant number, since it is smaller than the sum of its proper divisors (74714964407716).

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

55233244374620 is a wasteful number, since it uses less digits than its factorization.

55233244374620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277120 (or 277118 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 50.

The spelling of 55233244374620 in words is "fifty-five trillion, two hundred thirty-three billion, two hundred forty-four million, three hundred seventy-four thousand, six hundred twenty".