51610601 has 4 divisors (see below), whose sum is σ = 58983552. Its totient is φ = 44237652.

The previous prime is 51610577. The next prime is 51610607. The reversal of 51610601 is 10601615.

It is a happy number.

51610601 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51610601 - 2¹⁴ = 51594217 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 (51610607) 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, 3686465 + ... + 3686478.

It is an arithmetic number, because the mean of its divisors is an integer number (14745888).

Almost surely, 2^51610601 is an apocalyptic number.

It is an amenable number.

51610601 is a deficient number, since it is larger than the sum of its proper divisors (7372951).

51610601 is an equidigital number, since it uses as much as digits as its factorization.

51610601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7372950.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 51610601 is about 7184.0518511492. The cubic root of 51610601 is about 372.3170905074.

The spelling of 51610601 in words is "fifty-one million, six hundred ten thousand, six hundred one".