51825728 has 28 divisors (see below), whose sum is σ = 103266240. Its totient is φ = 25805952.

The previous prime is 51825713. The next prime is 51825743. The reversal of 51825728 is 82752815.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51825713) and next prime (51825743).

It is a junction number, because it is equal to n+sod(n) for n = 51825691 and 51825700.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15293 + ... + 18371.

It is an arithmetic number, because the mean of its divisors is an integer number (3688080).

Almost surely, 2^51825728 is an apocalyptic number.

It is an amenable number.

51825728 is a deficient number, since it is larger than the sum of its proper divisors (51440512).

51825728 is a wasteful number, since it uses less digits than its factorization.

51825728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354 (or 3344 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 51825728 is about 7199.0088206641. The cubic root of 51825728 is about 372.8336796554.

The spelling of 51825728 in words is "fifty-one million, eight hundred twenty-five thousand, seven hundred twenty-eight".