5156505056550 has 48 divisors (see below), whose sum is σ = 12788338435920. Its totient is φ = 1375045875840.

The previous prime is 5156505056503. The next prime is 5156505056557. The reversal of 5156505056550 is 556505056515.

It is a self number, because there is not a number n which added to its sum of digits gives 5156505056550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156505056557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10452856 + ... + 10935044.

It is an arithmetic number, because the mean of its divisors is an integer number (266423717415).

Almost surely, 2^{5156505056550} is an apocalyptic number.

5156505056550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5156505056550 is an abundant number, since it is smaller than the sum of its proper divisors (7631833379370).

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

5156505056550 is a wasteful number, since it uses less digits than its factorization.

5156505056550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553497 (or 553492 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 5156505056550 in words is "five trillion, one hundred fifty-six billion, five hundred five million, fifty-six thousand, five hundred fifty".