51364501 has 4 divisors (see below), whose sum is σ = 52206604. Its totient is φ = 50522400.

The previous prime is 51364499. The next prime is 51364519. The reversal of 51364501 is 10546315.

51364501 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 can be written as a sum of positive squares in 2 ways, for example, as 20295025 + 31069476 = 4505^2 + 5574^2 .

It is a cyclic number.

It is not a de Polignac number, because 51364501 - 2¹ = 51364499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51364801) 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, 420960 + ... + 421081.

It is an arithmetic number, because the mean of its divisors is an integer number (13051651).

Almost surely, 2^51364501 is an apocalyptic number.

It is an amenable number.

51364501 is a deficient number, since it is larger than the sum of its proper divisors (842103).

51364501 is an equidigital number, since it uses as much as digits as its factorization.

51364501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842102.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51364501 is about 7166.9031666404. The cubic root of 51364501 is about 371.7243617548.

The spelling of 51364501 in words is "fifty-one million, three hundred sixty-four thousand, five hundred one".