51028836 has 48 divisors (see below), whose sum is σ = 122145408. Its totient is φ = 16576000.

The previous prime is 51028829. The next prime is 51028837. The reversal of 51028836 is 63882015.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51028797 and 51028806.

It is not an unprimeable number, because it can be changed into a prime (51028837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85756 + ... + 86348.

It is an arithmetic number, because the mean of its divisors is an integer number (2544696).

Almost surely, 2^51028836 is an apocalyptic number.

It is an amenable number.

51028836 is an abundant number, since it is smaller than the sum of its proper divisors (71116572).

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

51028836 is a wasteful number, since it uses less digits than its factorization.

51028836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 51028836 is about 7143.4470670678. The cubic root of 51028836 is about 370.9128567520.

Adding to 51028836 its product of nonzero digits (11520), we get a triangular number (51040356 = T₁₀₁₀₃).

The spelling of 51028836 in words is "fifty-one million, twenty-eight thousand, eight hundred thirty-six".