55050557503 has 2 divisors, whose sum is σ = 55050557504. Its totient is φ = 55050557502.

The previous prime is 55050557449. The next prime is 55050557509. The reversal of 55050557503 is 30575505055.

It is a happy number.

55050557503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55050557503 - 2²⁵ = 55017003071 is a prime.

It is a super-2 number, since 2×55050557503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55050557509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525278751 + 27525278752.

It is an arithmetic number, because the mean of its divisors is an integer number (27525278752).

Almost surely, 2^55050557503 is an apocalyptic number.

55050557503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55050557503 is an equidigital number, since it uses as much as digits as its factorization.

55050557503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 328125, while the sum is 40.

The spelling of 55050557503 in words is "fifty-five billion, fifty million, five hundred fifty-seven thousand, five hundred three".