55250220013 has 8 divisors (see below), whose sum is σ = 56500567200. Its totient is φ = 54010336368.

The previous prime is 55250220001. The next prime is 55250220019. The reversal of 55250220013 is 31002205255.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55250220013 - 2¹⁷ = 55250088941 is a prime.

It is a super-2 number, since 2×55250220013² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55250220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250220019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605206 + ... + 2626327.

It is an arithmetic number, because the mean of its divisors is an integer number (7062570900).

Almost surely, 2^55250220013 is an apocalyptic number.

It is an amenable number.

55250220013 is a deficient number, since it is larger than the sum of its proper divisors (1250347187).

55250220013 is a wasteful number, since it uses less digits than its factorization.

55250220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231771.

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 55250220013 its reverse (31002205255), we get a palindrome (86252425268).

The spelling of 55250220013 in words is "fifty-five billion, two hundred fifty million, two hundred twenty thousand, thirteen".