51498068 has 18 divisors (see below), whose sum is σ = 93129498. Its totient is φ = 24916560.

The previous prime is 51498067. The next prime is 51498071. The reversal of 51498068 is 86089415.

It can be written as a sum of positive squares in only one way, i.e., 30448324 + 21049744 = 5518^2 + 4588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51498061) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2855 + ... + 10542.

It is an arithmetic number, because the mean of its divisors is an integer number (5173861).

Almost surely, 2^51498068 is an apocalyptic number.

It is an amenable number.

51498068 is a deficient number, since it is larger than the sum of its proper divisors (41631430).

51498068 is a wasteful number, since it uses less digits than its factorization.

51498068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463 (or 13430 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 51498068 is about 7176.2154371228. The cubic root of 51498068 is about 372.0462905358.

The spelling of 51498068 in words is "fifty-one million, four hundred ninety-eight thousand, sixty-eight".