51303525 has 48 divisors (see below), whose sum is σ = 104409984. Its totient is φ = 21646080.

The previous prime is 51303521. The next prime is 51303529. The reversal of 51303525 is 52530315.

51303525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51303521) and next prime (51303529).

It is not a de Polignac number, because 51303525 - 2² = 51303521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51303495 and 51303504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51303521) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3067 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (2175208).

Almost surely, 2^51303525 is an apocalyptic number.

It is an amenable number.

51303525 is an abundant number, since it is smaller than the sum of its proper divisors (53106459).

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

51303525 is a wasteful number, since it uses less digits than its factorization.

51303525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7550 (or 7545 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 51303525 is about 7162.6479042321. The cubic root of 51303525 is about 371.5772092832.

The spelling of 51303525 in words is "fifty-one million, three hundred three thousand, five hundred twenty-five".