51064251 has 16 divisors (see below), whose sum is σ = 78975744. Its totient is φ = 28743264.

The previous prime is 51064249. The next prime is 51064297. The reversal of 51064251 is 15246015.

It is not a de Polignac number, because 51064251 - 2¹ = 51064249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51064201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16740 + ... + 19553.

It is an arithmetic number, because the mean of its divisors is an integer number (4935984).

Almost surely, 2^51064251 is an apocalyptic number.

51064251 is a deficient number, since it is larger than the sum of its proper divisors (27911493).

51064251 is a wasteful number, since it uses less digits than its factorization.

51064251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36370.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51064251 is about 7145.9254823990. The cubic root of 51064251 is about 370.9986438100.

It can be divided in two parts, 51064 and 251, that added together give a palindrome (51315).

The spelling of 51064251 in words is "fifty-one million, sixty-four thousand, two hundred fifty-one".