51125523 has 16 divisors (see below), whose sum is σ = 72289920. Its totient is φ = 32049216.

The previous prime is 51125497. The next prime is 51125533. The reversal of 51125523 is 32552115.

It is a happy number.

It is not a de Polignac number, because 51125523 - 2¹³ = 51117331 is a prime.

It is a super-2 number, since 2×51125523² = 5227638204047058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51125493 and 51125502.

It is not an unprimeable number, because it can be changed into a prime (51125533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4536 + ... + 11082.

It is an arithmetic number, because the mean of its divisors is an integer number (4518120).

Almost surely, 2^51125523 is an apocalyptic number.

51125523 is a deficient number, since it is larger than the sum of its proper divisors (21164397).

51125523 is a wasteful number, since it uses less digits than its factorization.

51125523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706.

The product of its digits is 1500, while the sum is 24.

The square root of 51125523 is about 7150.2113954764. The cubic root of 51125523 is about 371.1469716032.

Adding to 51125523 its reverse (32552115), we get a palindrome (83677638).

The spelling of 51125523 in words is "fifty-one million, one hundred twenty-five thousand, five hundred twenty-three".