51371903 has 8 divisors (see below), whose sum is σ = 58478976. Its totient is φ = 44671000.

The previous prime is 51371899. The next prime is 51371911. The reversal of 51371903 is 30917315.

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

It is not a de Polignac number, because 51371903 - 2² = 51371899 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 (51371923) 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, 101273 + ... + 101778.

It is an arithmetic number, because the mean of its divisors is an integer number (7309872).

Almost surely, 2^51371903 is an apocalyptic number.

51371903 is a deficient number, since it is larger than the sum of its proper divisors (7107073).

51371903 is a wasteful number, since it uses less digits than its factorization.

51371903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203085.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 51371903 is about 7167.4195496008. The cubic root of 51371903 is about 371.7422169629.

The spelling of 51371903 in words is "fifty-one million, three hundred seventy-one thousand, nine hundred three".