51544123 has 4 divisors (see below), whose sum is σ = 51667560. Its totient is φ = 51420688.

The previous prime is 51544121. The next prime is 51544133. The reversal of 51544123 is 32144515.

It is a happy number.

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 51544123 - 2¹ = 51544121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51544121) 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, 61090 + ... + 61927.

It is an arithmetic number, because the mean of its divisors is an integer number (12916890).

Almost surely, 2^51544123 is an apocalyptic number.

51544123 is a deficient number, since it is larger than the sum of its proper divisors (123437).

51544123 is a wasteful number, since it uses less digits than its factorization.

51544123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123436.

The product of its digits is 2400, while the sum is 25.

The square root of 51544123 is about 7179.4235841048. The cubic root of 51544123 is about 372.1571651586.

Adding to 51544123 its reverse (32144515), we get a palindrome (83688638).

The spelling of 51544123 in words is "fifty-one million, five hundred forty-four thousand, one hundred twenty-three".