51903103 has 12 divisors (see below), whose sum is σ = 60684400. Its totient is φ = 44374008.

The previous prime is 51903097. The next prime is 51903121. The reversal of 51903103 is 30130915.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a de Polignac number, because none of the positive numbers 2^k-51903103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51903133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133233 + ... + 133621.

Almost surely, 2^51903103 is an apocalyptic number.

51903103 is a deficient number, since it is larger than the sum of its proper divisors (8781297).

51903103 is an frugal number, since it uses more digits than its factorization.

51903103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 51903103 is about 7204.3808200289. The cubic root of 51903103 is about 373.0191323409.

The spelling of 51903103 in words is "fifty-one million, nine hundred three thousand, one hundred three".