51964105 has 4 divisors (see below), whose sum is σ = 62356932. Its totient is φ = 41571280.

The previous prime is 51964079. The next prime is 51964123. The reversal of 51964105 is 50146915.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 39601849 = 3516^2 + 6293^2 .

It is not a de Polignac number, because 51964105 - 2¹⁵ = 51931337 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5196406 + ... + 5196415.

It is an arithmetic number, because the mean of its divisors is an integer number (15589233).

Almost surely, 2^51964105 is an apocalyptic number.

It is an amenable number.

51964105 is a deficient number, since it is larger than the sum of its proper divisors (10392827).

51964105 is a wasteful number, since it uses less digits than its factorization.

51964105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392826.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 51964105 is about 7208.6132508271. The cubic root of 51964105 is about 373.1652122665.

The spelling of 51964105 in words is "fifty-one million, nine hundred sixty-four thousand, one hundred five".