51898898 has 8 divisors (see below), whose sum is σ = 80359680. Its totient is φ = 25112340.

The previous prime is 51898871. The next prime is 51898949. The reversal of 51898898 is 89889815.

51898898 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 super-2 number, since 2×51898898² = 5386991227228808, which contains 22 as substring.

It is an unprimeable number.

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, 418478 + ... + 418601.

It is an arithmetic number, because the mean of its divisors is an integer number (10044960).

Almost surely, 2^51898898 is an apocalyptic number.

51898898 is a deficient number, since it is larger than the sum of its proper divisors (28460782).

51898898 is a wasteful number, since it uses less digits than its factorization.

51898898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837112.

The product of its digits is 1658880, while the sum is 56.

The square root of 51898898 is about 7204.0889777959. The cubic root of 51898898 is about 373.0090585193.

The spelling of 51898898 in words is "fifty-one million, eight hundred ninety-eight thousand, eight hundred ninety-eight".