51498903 has 8 divisors (see below), whose sum is σ = 69295600. Its totient is φ = 34017408.

The previous prime is 51498877. The next prime is 51498913. The reversal of 51498903 is 30989415.

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

It is not a de Polignac number, because 51498903 - 2¹⁷ = 51367831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51498913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78418 + ... + 79071.

It is an arithmetic number, because the mean of its divisors is an integer number (8661950).

Almost surely, 2^51498903 is an apocalyptic number.

51498903 is a deficient number, since it is larger than the sum of its proper divisors (17796697).

51498903 is a wasteful number, since it uses less digits than its factorization.

51498903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157601.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 51498903 is about 7176.2736151850. The cubic root of 51498903 is about 372.0483013360.

The spelling of 51498903 in words is "fifty-one million, four hundred ninety-eight thousand, nine hundred three".