51502998 has 8 divisors (see below), whose sum is σ = 103006008. Its totient is φ = 17167664.

The previous prime is 51502973. The next prime is 51502999. The reversal of 51502998 is 89920515.

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

51502998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51502999) 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, 4291911 + ... + 4291922.

It is an arithmetic number, because the mean of its divisors is an integer number (12875751).

Almost surely, 2^51502998 is an apocalyptic number.

51502998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51502998 is a wasteful number, since it uses less digits than its factorization.

51502998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8583838.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 51502998 is about 7176.5589247215. The cubic root of 51502998 is about 372.0581623707.

The spelling of 51502998 in words is "fifty-one million, five hundred two thousand, nine hundred ninety-eight".