51825828 has 24 divisors (see below), whose sum is σ = 121147488. Its totient is φ = 17243776.

The previous prime is 51825821. The next prime is 51825841. The reversal of 51825828 is 82852815.

It is not an unprimeable number, because it can be changed into a prime (51825821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475 + ... + 10757.

It is an arithmetic number, because the mean of its divisors is an integer number (5047812).

Almost surely, 2^51825828 is an apocalyptic number.

It is an amenable number.

51825828 is an abundant number, since it is smaller than the sum of its proper divisors (69321660).

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

51825828 is a wasteful number, since it uses less digits than its factorization.

51825828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883 (or 7881 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The square root of 51825828 is about 7199.0157660614. The cubic root of 51825828 is about 372.8339194548.

It can be divided in two parts, 5182582 and 8, that added together give a triangular number (5182590 = T₃₂₁₉).

The spelling of 51825828 in words is "fifty-one million, eight hundred twenty-five thousand, eight hundred twenty-eight".