51152665 has 16 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 39282880.

The previous prime is 51152663. The next prime is 51152669. The reversal of 51152665 is 56625115.

It is not a de Polignac number, because 51152665 - 2¹ = 51152663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51152663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26772 + ... + 28618.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^51152665 is an apocalyptic number.

It is an amenable number.

51152665 is a deficient number, since it is larger than the sum of its proper divisors (12714215).

51152665 is a wasteful number, since it uses less digits than its factorization.

51152665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its digits is 9000, while the sum is 31.

The square root of 51152665 is about 7152.1091294806. The cubic root of 51152665 is about 371.2126393191.

The spelling of 51152665 in words is "fifty-one million, one hundred fifty-two thousand, six hundred sixty-five".