51236115 has 24 divisors (see below), whose sum is σ = 95363280. Its totient is φ = 23421888.

The previous prime is 51236099. The next prime is 51236117. The reversal of 51236115 is 51163215.

51236115 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 51236115 - 2⁴ = 51236099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51236117) 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 23 ways as a sum of consecutive naturals, for example, 34120 + ... + 35589.

It is an arithmetic number, because the mean of its divisors is an integer number (3973470).

Almost surely, 2^51236115 is an apocalyptic number.

51236115 is a deficient number, since it is larger than the sum of its proper divisors (44127165).

51236115 is a wasteful number, since it uses less digits than its factorization.

51236115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69731 (or 69724 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 51236115 is about 7157.9406954794. The cubic root of 51236115 is about 371.4143939714.

Subtracting from 51236115 its reverse (51163215), we obtain a square (72900 = 270²).

The spelling of 51236115 in words is "fifty-one million, two hundred thirty-six thousand, one hundred fifteen".