55650273240 has 128 divisors (see below), whose sum is σ = 168228239040. Its totient is φ = 14726854656.

The previous prime is 55650273233. The next prime is 55650273251. The reversal of 55650273240 is 4237205655.

It is a happy number.

It is a super-3 number, since 3×55650273240³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12723694 + ... + 12728066.

Almost surely, 2^55650273240 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 55650273240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84114119520).

55650273240 is an abundant number, since it is smaller than the sum of its proper divisors (112577965800).

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

55650273240 is a wasteful number, since it uses less digits than its factorization.

55650273240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173 (or 5169 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

Adding to 55650273240 its reverse (4237205655), we get a palindrome (59887478895).

The spelling of 55650273240 in words is "fifty-five billion, six hundred fifty million, two hundred seventy-three thousand, two hundred forty".