51353103 has 4 divisors (see below), whose sum is σ = 68470808. Its totient is φ = 34235400.

The previous prime is 51353083. The next prime is 51353123. The reversal of 51353103 is 30135315.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (51353083) and next prime (51353123).

It is not a de Polignac number, because 51353103 - 2¹³ = 51344911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51353103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51353123) 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, 8558848 + ... + 8558853.

It is an arithmetic number, because the mean of its divisors is an integer number (17117702).

Almost surely, 2^51353103 is an apocalyptic number.

51353103 is a deficient number, since it is larger than the sum of its proper divisors (17117705).

51353103 is a wasteful number, since it uses less digits than its factorization.

51353103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17117704.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 51353103 is about 7166.1079394606. The cubic root of 51353103 is about 371.6968639848.

Adding to 51353103 its reverse (30135315), we get a palindrome (81488418).

The spelling of 51353103 in words is "fifty-one million, three hundred fifty-three thousand, one hundred three".