51791601 has 16 divisors (see below), whose sum is σ = 71134784. Its totient is φ = 33493824.

The previous prime is 51791599. The next prime is 51791609. The reversal of 51791601 is 10619715.

51791601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51791601 - 2¹ = 51791599 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51791609) 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 15 ways as a sum of consecutive naturals, for example, 60291 + ... + 61143.

It is an arithmetic number, because the mean of its divisors is an integer number (4445924).

Almost surely, 2^51791601 is an apocalyptic number.

It is an amenable number.

51791601 is a deficient number, since it is larger than the sum of its proper divisors (19343183).

51791601 is a wasteful number, since it uses less digits than its factorization.

51791601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 51791601 is about 7196.6381734807. The cubic root of 51791601 is about 372.7518252732.

The spelling of 51791601 in words is "fifty-one million, seven hundred ninety-one thousand, six hundred one".