51230998 has 48 divisors (see below), whose sum is σ = 96975360. Its totient is φ = 19869408.

The previous prime is 51230989. The next prime is 51231007. The reversal of 51230998 is 89903215.

51230998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51230989) and next prime (51231007).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 139411 + ... + 139777.

It is an arithmetic number, because the mean of its divisors is an integer number (2020320).

Almost surely, 2^51230998 is an apocalyptic number.

51230998 is a deficient number, since it is larger than the sum of its proper divisors (45744362).

51230998 is a wasteful number, since it uses less digits than its factorization.

51230998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 51230998 is about 7157.5832513496. The cubic root of 51230998 is about 371.4020290557.

The spelling of 51230998 in words is "fifty-one million, two hundred thirty thousand, nine hundred ninety-eight".