51036502 has 8 divisors (see below), whose sum is σ = 83514312. Its totient is φ = 23198400.

The previous prime is 51036497. The next prime is 51036529. The reversal of 51036502 is 20563015.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 2319841 = 51036502 / (5 + 1 + 0 + 3 + 6 + 5 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159899 + ... + 1159942.

It is an arithmetic number, because the mean of its divisors is an integer number (10439289).

Almost surely, 2^51036502 is an apocalyptic number.

51036502 is a deficient number, since it is larger than the sum of its proper divisors (32477810).

51036502 is a wasteful number, since it uses less digits than its factorization.

51036502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319854.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 51036502 is about 7143.9836226016. The cubic root of 51036502 is about 370.9314297511.

Adding to 51036502 its reverse (20563015), we get a palindrome (71599517).

The spelling of 51036502 in words is "fifty-one million, thirty-six thousand, five hundred two".