5111254404550 has 192 divisors, whose sum is σ = 11126604994560. Its totient is φ = 1710610836480.

The previous prime is 5111254404539. The next prime is 5111254404559. The reversal of 5111254404550 is 554044521115.

It is a super-2 number, since 2×5111254404550² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111254404559) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4947970834 + ... + 4947971866.

It is an arithmetic number, because the mean of its divisors is an integer number (57951067680).

Almost surely, 2^{5111254404550} is an apocalyptic number.

5111254404550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5111254404550 is an abundant number, since it is smaller than the sum of its proper divisors (6015350590010).

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

5111254404550 is a wasteful number, since it uses less digits than its factorization.

5111254404550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2202 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 5111254404550 its reverse (554044521115), we get a palindrome (5665298925665).

The spelling of 5111254404550 in words is "five trillion, one hundred eleven billion, two hundred fifty-four million, four hundred four thousand, five hundred fifty".