51264503 has 8 divisors (see below), whose sum is σ = 54348480. Its totient is φ = 48188160.

The previous prime is 51264497. The next prime is 51264517. The reversal of 51264503 is 30546215.

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 51264503 - 2⁴ = 51264487 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 (51264533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17858 + ... + 20528.

It is an arithmetic number, because the mean of its divisors is an integer number (6793560).

Almost surely, 2^51264503 is an apocalyptic number.

51264503 is a deficient number, since it is larger than the sum of its proper divisors (3083977).

51264503 is a wasteful number, since it uses less digits than its factorization.

51264503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 51264503 is about 7159.9233934449. The cubic root of 51264503 is about 371.4829768784.

The spelling of 51264503 in words is "fifty-one million, two hundred sixty-four thousand, five hundred three".