51025506 has 32 divisors (see below), whose sum is σ = 117086208. Its totient is φ = 14521680.

The previous prime is 51025493. The next prime is 51025511. The reversal of 51025506 is 60552015.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9141 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (3658944).

Almost surely, 2^51025506 is an apocalyptic number.

51025506 is an abundant number, since it is smaller than the sum of its proper divisors (66060702).

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

51025506 is a wasteful number, since it uses less digits than its factorization.

51025506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 51025506 is about 7143.2139825152. The cubic root of 51025506 is about 370.9047883291.

The spelling of 51025506 in words is "fifty-one million, twenty-five thousand, five hundred six".