51362651 has 4 divisors (see below), whose sum is σ = 51409512. Its totient is φ = 51315792.

The previous prime is 51362621. The next prime is 51362659. The reversal of 51362651 is 15626315.

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-51362651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51362659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21746 + ... + 23991.

It is an arithmetic number, because the mean of its divisors is an integer number (12852378).

Almost surely, 2^51362651 is an apocalyptic number.

51362651 is a deficient number, since it is larger than the sum of its proper divisors (46861).

51362651 is a wasteful number, since it uses less digits than its factorization.

51362651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46860.

The product of its digits is 5400, while the sum is 29.

The square root of 51362651 is about 7166.7740999699. The cubic root of 51362651 is about 371.7198988909.

Adding to 51362651 its reverse (15626315), we get a palindrome (66988966).

The spelling of 51362651 in words is "fifty-one million, three hundred sixty-two thousand, six hundred fifty-one".