51356051 has 4 divisors (see below), whose sum is σ = 51442104. Its totient is φ = 51270000.

The previous prime is 51356021. The next prime is 51356059. The reversal of 51356051 is 15065315.

51356051 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 a de Polignac number, because none of the positive numbers 2^k-51356051 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 51356051.

It is not an unprimeable number, because it can be changed into a prime (51356059) 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, 42125 + ... + 43326.

It is an arithmetic number, because the mean of its divisors is an integer number (12860526).

Almost surely, 2^51356051 is an apocalyptic number.

51356051 is a deficient number, since it is larger than the sum of its proper divisors (86053).

51356051 is an equidigital number, since it uses as much as digits as its factorization.

51356051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86052.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 51356051 is about 7166.3136269633. The cubic root of 51356051 is about 371.7039764494.

The spelling of 51356051 in words is "fifty-one million, three hundred fifty-six thousand, fifty-one".