51102051 has 108 divisors (see below), whose sum is σ = 99887256. Its totient is φ = 23063040.

The previous prime is 51102049. The next prime is 51102127. The reversal of 51102051 is 15020115.

It is not a de Polignac number, because 51102051 - 2¹ = 51102049 is a prime.

It is a super-2 number, since 2×51102051² = 5222839232813202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51102051.

It is not an unprimeable number, because it can be changed into a prime (51102151) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 3005995 + ... + 3006011.

It is an arithmetic number, because the mean of its divisors is an integer number (924882).

Almost surely, 2^51102051 is an apocalyptic number.

51102051 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51102051 is a deficient number, since it is larger than the sum of its proper divisors (48785205).

51102051 is a wasteful number, since it uses less digits than its factorization.

51102051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 51 counting only the distinct ones).

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

The square root of 51102051 is about 7148.5698569714. The cubic root of 51102051 is about 371.0901643914.

Adding to 51102051 its reverse (15020115), we get a palindrome (66122166).

The spelling of 51102051 in words is "fifty-one million, one hundred two thousand, fifty-one".