51544113 has 4 divisors (see below), whose sum is σ = 68725488. Its totient is φ = 34362740.

The previous prime is 51544109. The next prime is 51544121. The reversal of 51544113 is 31144515.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51544113 - 2² = 51544109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51544133) 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, 8590683 + ... + 8590688.

It is an arithmetic number, because the mean of its divisors is an integer number (17181372).

Almost surely, 2^51544113 is an apocalyptic number.

It is an amenable number.

51544113 is a deficient number, since it is larger than the sum of its proper divisors (17181375).

51544113 is a wasteful number, since it uses less digits than its factorization.

51544113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181374.

The product of its digits is 1200, while the sum is 24.

The square root of 51544113 is about 7179.4228876700. The cubic root of 51544113 is about 372.1571410914.

Adding to 51544113 its reverse (31144515), we get a palindrome (82688628).

The spelling of 51544113 in words is "fifty-one million, five hundred forty-four thousand, one hundred thirteen".