51436651 has 8 divisors (see below), whose sum is σ = 59248640. Its totient is φ = 43740648.

The previous prime is 51436631. The next prime is 51436661. The reversal of 51436651 is 15663415.

51436651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51436651 - 2⁷ = 51436523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51436621) 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 7 ways as a sum of consecutive naturals, for example, 28041 + ... + 29818.

It is an arithmetic number, because the mean of its divisors is an integer number (7406080).

Almost surely, 2^51436651 is an apocalyptic number.

51436651 is a deficient number, since it is larger than the sum of its proper divisors (7811989).

51436651 is a wasteful number, since it uses less digits than its factorization.

51436651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57993.

The product of its digits is 10800, while the sum is 31.

The square root of 51436651 is about 7171.9349550871. The cubic root of 51436651 is about 371.8983299254.

It can be divided in two parts, 51436 and 651, that multiplied together give a triangular number (33484836 = T₈₁₈₃).

The spelling of 51436651 in words is "fifty-one million, four hundred thirty-six thousand, six hundred fifty-one".