51496651 has 4 divisors (see below), whose sum is σ = 51559600. Its totient is φ = 51433704.

The previous prime is 51496619. The next prime is 51496657. The reversal of 51496651 is 15669415.

51496651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51496651 - 2⁵ = 51496619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51496651.

It is not an unprimeable number, because it can be changed into a prime (51496657) 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 3 ways as a sum of consecutive naturals, for example, 30231 + ... + 31888.

It is an arithmetic number, because the mean of its divisors is an integer number (12889900).

Almost surely, 2^51496651 is an apocalyptic number.

51496651 is a deficient number, since it is larger than the sum of its proper divisors (62949).

51496651 is an equidigital number, since it uses as much as digits as its factorization.

51496651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62948.

The product of its digits is 32400, while the sum is 37.

The square root of 51496651 is about 7176.1167075236. The cubic root of 51496651 is about 372.0428781461.

The spelling of 51496651 in words is "fifty-one million, four hundred ninety-six thousand, six hundred fifty-one".