51241015 has 12 divisors (see below), whose sum is σ = 71528616. Its totient is φ = 35136528.

The previous prime is 51241013. The next prime is 51241019. The reversal of 51241015 is 51014215.

51241015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51241015 - 2¹ = 51241013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51240983 and 51241001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51241013) 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 11 ways as a sum of consecutive naturals, for example, 104329 + ... + 104818.

It is an arithmetic number, because the mean of its divisors is an integer number (5960718).

Almost surely, 2^51241015 is an apocalyptic number.

51241015 is a deficient number, since it is larger than the sum of its proper divisors (20287601).

51241015 is a wasteful number, since it uses less digits than its factorization.

51241015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209166 (or 209159 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51241015 is about 7158.2829645104. The cubic root of 51241015 is about 371.4262337483.

The spelling of 51241015 in words is "fifty-one million, two hundred forty-one thousand, fifteen".