51105102 has 8 divisors (see below), whose sum is σ = 102210216. Its totient is φ = 17035032.

The previous prime is 51105101. The next prime is 51105107. The reversal of 51105102 is 20150115.

It is a sphenic number, since it is the product of 3 distinct primes.

51105102 is an admirable number.

It is a super-2 number, since 2×51105102² = 5223462900860808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51105101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4258753 + ... + 4258764.

It is an arithmetic number, because the mean of its divisors is an integer number (12776277).

Almost surely, 2^51105102 is an apocalyptic number.

51105102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51105102 is a wasteful number, since it uses less digits than its factorization.

51105102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8517522.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 51105102 is about 7148.7832531138. The cubic root of 51105102 is about 371.0975494411.

Adding to 51105102 its reverse (20150115), we get a palindrome (71255217).

The spelling of 51105102 in words is "fifty-one million, one hundred five thousand, one hundred two".