51152689 has 4 divisors (see below), whose sum is σ = 58460224. Its totient is φ = 43845156.

The previous prime is 51152687. The next prime is 51152729. The reversal of 51152689 is 98625115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51152689 - 2¹ = 51152687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51152687) 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 3 ways as a sum of consecutive naturals, for example, 3653757 + ... + 3653770.

It is an arithmetic number, because the mean of its divisors is an integer number (14615056).

Almost surely, 2^51152689 is an apocalyptic number.

It is an amenable number.

51152689 is a deficient number, since it is larger than the sum of its proper divisors (7307535).

51152689 is an equidigital number, since it uses as much as digits as its factorization.

51152689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307534.

The product of its digits is 21600, while the sum is 37.

The square root of 51152689 is about 7152.1108073072. The cubic root of 51152689 is about 371.2126973747.

The spelling of 51152689 in words is "fifty-one million, one hundred fifty-two thousand, six hundred eighty-nine".