51333102 has 60 divisors (see below), whose sum is σ = 120443400. Its totient is φ = 16339752.

The previous prime is 51333067. The next prime is 51333109. The reversal of 51333102 is 20133315.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51333109) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 85399 + ... + 85997.

It is an arithmetic number, because the mean of its divisors is an integer number (2007390).

Almost surely, 2^51333102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51333102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60221700).

51333102 is an abundant number, since it is smaller than the sum of its proper divisors (69110298).

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

51333102 is a wasteful number, since it uses less digits than its factorization.

51333102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 51333102 is about 7164.7122761490. The cubic root of 51333102 is about 371.6486015694.

Adding to 51333102 its reverse (20133315), we get a palindrome (71466417).

The spelling of 51333102 in words is "fifty-one million, three hundred thirty-three thousand, one hundred two".