51513528 has 32 divisors (see below), whose sum is σ = 140492160. Its totient is φ = 15610080.

The previous prime is 51513433. The next prime is 51513533. The reversal of 51513528 is 82531515.

It is a junction number, because it is equal to n+sod(n) for n = 51513495 and 51513504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97300 + ... + 97827.

It is an arithmetic number, because the mean of its divisors is an integer number (4390380).

Almost surely, 2^51513528 is an apocalyptic number.

It is an amenable number.

51513528 is an abundant number, since it is smaller than the sum of its proper divisors (88978632).

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

51513528 is a wasteful number, since it uses less digits than its factorization.

51513528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195147 (or 195143 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 51513528 is about 7177.2925257370. The cubic root of 51513528 is about 372.0835169173.

The spelling of 51513528 in words is "fifty-one million, five hundred thirteen thousand, five hundred twenty-eight".