51338503 has 8 divisors (see below), whose sum is σ = 52414128. Its totient is φ = 50266944.

The previous prime is 51338501. The next prime is 51338509. The reversal of 51338503 is 30583315.

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

It is a cyclic number.

It is not a de Polignac number, because 51338503 - 2¹ = 51338501 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 (51338501) 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, 46251 + ... + 47347.

It is an arithmetic number, because the mean of its divisors is an integer number (6551766).

Almost surely, 2^51338503 is an apocalyptic number.

51338503 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51338503 is a deficient number, since it is larger than the sum of its proper divisors (1075625).

51338503 is a wasteful number, since it uses less digits than its factorization.

51338503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 51338503 is about 7165.0891829760. The cubic root of 51338503 is about 371.6616354185.

The spelling of 51338503 in words is "fifty-one million, three hundred thirty-eight thousand, five hundred three".