51202428 has 24 divisors (see below), whose sum is σ = 120986880. Its totient is φ = 16851120.

The previous prime is 51202387. The next prime is 51202471. The reversal of 51202428 is 82420215.

51202428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51202398 and 51202407.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26058 + ... + 27953.

It is an arithmetic number, because the mean of its divisors is an integer number (5041120).

Almost surely, 2^51202428 is an apocalyptic number.

It is an amenable number.

51202428 is an abundant number, since it is smaller than the sum of its proper divisors (69784452).

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

51202428 is a wasteful number, since it uses less digits than its factorization.

51202428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54097 (or 54095 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 51202428 is about 7155.5871876457. The cubic root of 51202428 is about 371.3329762721.

The spelling of 51202428 in words is "fifty-one million, two hundred two thousand, four hundred twenty-eight".