51010505 has 16 divisors (see below), whose sum is σ = 75339264. Its totient is φ = 32287680.

The previous prime is 51010499. The next prime is 51010511. The reversal of 51010505 is 50501015.

51010505 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 (51010499) and next prime (51010511).

It is not a de Polignac number, because 51010505 - 2¹⁶ = 50944969 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55601 + ... + 56510.

It is an arithmetic number, because the mean of its divisors is an integer number (4708704).

Almost surely, 2^51010505 is an apocalyptic number.

It is an amenable number.

51010505 is a deficient number, since it is larger than the sum of its proper divisors (24328759).

51010505 is a wasteful number, since it uses less digits than its factorization.

51010505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112136.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 51010505 is about 7142.1638877864. The cubic root of 51010505 is about 370.8684373059.

It can be divided in two parts, 51010 and 505, that added together give a palindrome (51515).

The spelling of 51010505 in words is "fifty-one million, ten thousand, five hundred five".