51052503 has 8 divisors (see below), whose sum is σ = 69730416. Its totient is φ = 33204800.

The previous prime is 51052501. The next prime is 51052511. The reversal of 51052503 is 30525015.

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 51052503 - 2¹ = 51052501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51052503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51052501) 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, 207408 + ... + 207653.

It is an arithmetic number, because the mean of its divisors is an integer number (8716302).

Almost surely, 2^51052503 is an apocalyptic number.

51052503 is a deficient number, since it is larger than the sum of its proper divisors (18677913).

51052503 is a wasteful number, since it uses less digits than its factorization.

51052503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415105.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51052503 is about 7145.1034282227. The cubic root of 51052503 is about 370.9701905949.

Adding to 51052503 its reverse (30525015), we get a palindrome (81577518).

The spelling of 51052503 in words is "fifty-one million, fifty-two thousand, five hundred three".