51105051050 has 48 divisors (see below), whose sum is σ = 95381862432. Its totient is φ = 20371953600.

The previous prime is 51105050957. The next prime is 51105051059. The reversal of 51105051050 is 5015050115.

It is a happy number.

51105051050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51105051050² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51105051059) 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, 24533309 + ... + 24535391.

It is an arithmetic number, because the mean of its divisors is an integer number (1987122134).

Almost surely, 2^51105051050 is an apocalyptic number.

51105051050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51105051050 is a deficient number, since it is larger than the sum of its proper divisors (44276811382).

51105051050 is a wasteful number, since it uses less digits than its factorization.

51105051050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3538 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 51105051050 in words is "fifty-one billion, one hundred five million, fifty-one thousand, fifty".