51115102 has 8 divisors (see below), whose sum is σ = 76964976. Its totient is φ = 25460112.

The previous prime is 51115079. The next prime is 51115109. The reversal of 51115102 is 20151115.

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

It is a super-2 number, since 2×51115102² = 5225507304940808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115109) 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, 48063 + ... + 49114.

It is an arithmetic number, because the mean of its divisors is an integer number (9620622).

Almost surely, 2^51115102 is an apocalyptic number.

51115102 is a deficient number, since it is larger than the sum of its proper divisors (25849874).

51115102 is a wasteful number, since it uses less digits than its factorization.

51115102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97442.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 51115102 is about 7149.4826386250. The cubic root of 51115102 is about 371.1217527224.

Adding to 51115102 its reverse (20151115), we get a palindrome (71266217).

The spelling of 51115102 in words is "fifty-one million, one hundred fifteen thousand, one hundred two".