51698230 has 8 divisors (see below), whose sum is σ = 93056832. Its totient is φ = 20679288.

The previous prime is 51698209. The next prime is 51698237. The reversal of 51698230 is 3289615.

51698230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51698237) 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, 2584902 + ... + 2584921.

It is an arithmetic number, because the mean of its divisors is an integer number (11632104).

Almost surely, 2^51698230 is an apocalyptic number.

51698230 is a deficient number, since it is larger than the sum of its proper divisors (41358602).

51698230 is a wasteful number, since it uses less digits than its factorization.

51698230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169830.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 51698230 is about 7190.1481208665. The cubic root of 51698230 is about 372.5276888866.

The spelling of 51698230 in words is "fifty-one million, six hundred ninety-eight thousand, two hundred thirty".