51015051 has 6 divisors (see below), whose sum is σ = 73688420. Its totient is φ = 34010028.

The previous prime is 51015047. The next prime is 51015061. The reversal of 51015051 is 15051015.

51015051 is a `hidden beast` number, since 510 + 150 + 5 + 1 = 666.

51015051 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 51015051 - 2² = 51015047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51015001) 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 5 ways as a sum of consecutive naturals, for example, 2834161 + ... + 2834178.

Almost surely, 2^51015051 is an apocalyptic number.

51015051 is a deficient number, since it is larger than the sum of its proper divisors (22673369).

51015051 is a wasteful number, since it uses less digits than its factorization.

51015051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668345 (or 5668342 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 51015051 is about 7142.4821315842. The cubic root of 51015051 is about 370.8794541074.

Adding to 51015051 its reverse (15051015), we get a palindrome (66066066).

The spelling of 51015051 in words is "fifty-one million, fifteen thousand, fifty-one".