55055311501 has 4 divisors (see below), whose sum is σ = 55258467904. Its totient is φ = 54852155100.

The previous prime is 55055311471. The next prime is 55055311511. The reversal of 55055311501 is 10511355055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55055311501 - 2⁵ = 55055311469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055311511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101577795 + ... + 101578336.

It is an arithmetic number, because the mean of its divisors is an integer number (13814616976).

Almost surely, 2^55055311501 is an apocalyptic number.

It is an amenable number.

55055311501 is a deficient number, since it is larger than the sum of its proper divisors (203156403).

55055311501 is a wasteful number, since it uses less digits than its factorization.

55055311501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203156402.

The product of its (nonzero) digits is 9375, while the sum is 31.

Adding to 55055311501 its reverse (10511355055), we get a palindrome (65566666556).

The spelling of 55055311501 in words is "fifty-five billion, fifty-five million, three hundred eleven thousand, five hundred one".