55050312021 has 16 divisors (see below), whose sum is σ = 76616211840. Its totient is φ = 35093329920.

The previous prime is 55050312007. The next prime is 55050312041. The reversal of 55050312021 is 12021305055.

It is a happy number.

It is not a de Polignac number, because 55050312021 - 2⁶ = 55050311957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55050311982 and 55050312000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050312001) 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, 92781 + ... + 344541.

It is an arithmetic number, because the mean of its divisors is an integer number (4788513240).

Almost surely, 2^55050312021 is an apocalyptic number.

It is an amenable number.

55050312021 is a deficient number, since it is larger than the sum of its proper divisors (21565899819).

55050312021 is a wasteful number, since it uses less digits than its factorization.

55050312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254956.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 55050312021 its reverse (12021305055), we get a palindrome (67071617076).

The spelling of 55050312021 in words is "fifty-five billion, fifty million, three hundred twelve thousand, twenty-one".