51488503 has 4 divisors (see below), whose sum is σ = 56169288. Its totient is φ = 46807720.

The previous prime is 51488491. The next prime is 51488509. The reversal of 51488503 is 30588415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51488503 - 2¹³ = 51480311 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 (51488509) 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, 2340376 + ... + 2340397.

It is an arithmetic number, because the mean of its divisors is an integer number (14042322).

Almost surely, 2^51488503 is an apocalyptic number.

51488503 is a deficient number, since it is larger than the sum of its proper divisors (4680785).

51488503 is a wasteful number, since it uses less digits than its factorization.

51488503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680784.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 51488503 is about 7175.5489685459. The cubic root of 51488503 is about 372.0232550884.

The spelling of 51488503 in words is "fifty-one million, four hundred eighty-eight thousand, five hundred three".