51005101110 has 64 divisors (see below), whose sum is σ = 126668378880. Its totient is φ = 13128716160.

The previous prime is 51005101087. The next prime is 51005101117. The reversal of 51005101110 is 1110150015.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 51005101110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51005101117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4730025 + ... + 4740795.

It is an arithmetic number, because the mean of its divisors is an integer number (1979193420).

Almost surely, 2^51005101110 is an apocalyptic number.

51005101110 is an abundant number, since it is smaller than the sum of its proper divisors (75663277770).

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

51005101110 is a wasteful number, since it uses less digits than its factorization.

51005101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16253.

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 51005101110 its reverse (1110150015), we get a palindrome (52115251125).

The spelling of 51005101110 in words is "fifty-one billion, five million, one hundred one thousand, one hundred ten".