51036698 has 8 divisors (see below), whose sum is σ = 80584320. Its totient is φ = 24175260.

The previous prime is 51036697. The next prime is 51036707. The reversal of 51036698 is 89663015.

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 (38), and also a Moran number because the ratio is a prime number: 1343071 = 51036698 / (5 + 1 + 0 + 3 + 6 + 6 + 9 + 8).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51036691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671498 + ... + 671573.

It is an arithmetic number, because the mean of its divisors is an integer number (10073040).

Almost surely, 2^51036698 is an apocalyptic number.

51036698 is a deficient number, since it is larger than the sum of its proper divisors (29547622).

51036698 is a wasteful number, since it uses less digits than its factorization.

51036698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343092.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 51036698 is about 7143.9973404250. The cubic root of 51036698 is about 370.9319045908.

Adding to 51036698 its sum of digits (38), we get a square (51036736 = 7144²).

The spelling of 51036698 in words is "fifty-one million, thirty-six thousand, six hundred ninety-eight".