51525860 has 12 divisors (see below), whose sum is σ = 108204348. Its totient is φ = 20610336.

The previous prime is 51525833. The next prime is 51525863. The reversal of 51525860 is 6852515.

It can be written as a sum of positive squares in 2 ways, for example, as 6071296 + 45454564 = 2464^2 + 6742^2 .

It is not an unprimeable number, because it can be changed into a prime (51525863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288127 + ... + 1288166.

It is an arithmetic number, because the mean of its divisors is an integer number (9017029).

Almost surely, 2^51525860 is an apocalyptic number.

It is an amenable number.

51525860 is an abundant number, since it is smaller than the sum of its proper divisors (56678488).

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

51525860 is a wasteful number, since it uses less digits than its factorization.

51525860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576302 (or 2576300 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 51525860 is about 7178.1515726543. The cubic root of 51525860 is about 372.1132059977.

The spelling of 51525860 in words is "fifty-one million, five hundred twenty-five thousand, eight hundred sixty".