51498828 has 60 divisors (see below), whose sum is σ = 137214000. Its totient is φ = 16836768.

The previous prime is 51498827. The next prime is 51498833. The reversal of 51498828 is 82889415.

It is a happy number.

51498828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51498827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15673 + ... + 18671.

It is an arithmetic number, because the mean of its divisors is an integer number (2286900).

Almost surely, 2^51498828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51498828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68607000).

51498828 is an abundant number, since it is smaller than the sum of its proper divisors (85715172).

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

51498828 is a wasteful number, since it uses less digits than its factorization.

51498828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3057 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 51498828 is about 7176.2683896298. The cubic root of 51498828 is about 372.0481207261.

It can be divided in two parts, 51498 and 828, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 51498828 in words is "fifty-one million, four hundred ninety-eight thousand, eight hundred twenty-eight".