51625103 has 4 divisors (see below), whose sum is σ = 51923688. Its totient is φ = 51326520.

The previous prime is 51625099. The next prime is 51625117. The reversal of 51625103 is 30152615.

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 51625103 - 2² = 51625099 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 (51625163) 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, 149033 + ... + 149378.

It is an arithmetic number, because the mean of its divisors is an integer number (12980922).

Almost surely, 2^51625103 is an apocalyptic number.

51625103 is a deficient number, since it is larger than the sum of its proper divisors (298585).

51625103 is a wasteful number, since it uses less digits than its factorization.

51625103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298584.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 51625103 is about 7185.0610992531. The cubic root of 51625103 is about 372.3519595505.

Adding to 51625103 its reverse (30152615), we get a palindrome (81777718).

The spelling of 51625103 in words is "fifty-one million, six hundred twenty-five thousand, one hundred three".