51544361 has 8 divisors (see below), whose sum is σ = 56757024. Its totient is φ = 46419520.

The previous prime is 51544343. The next prime is 51544369. The reversal of 51544361 is 16344515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51544361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51544369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20720 + ... + 23073.

It is an arithmetic number, because the mean of its divisors is an integer number (7094628).

Almost surely, 2^51544361 is an apocalyptic number.

It is an amenable number.

51544361 is a deficient number, since it is larger than the sum of its proper divisors (5212663).

51544361 is a wasteful number, since it uses less digits than its factorization.

51544361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43911.

The product of its digits is 7200, while the sum is 29.

The square root of 51544361 is about 7179.4401592325. The cubic root of 51544361 is about 372.1577379576.

Adding to 51544361 its reverse (16344515), we get a palindrome (67888876).

The spelling of 51544361 in words is "fifty-one million, five hundred forty-four thousand, three hundred sixty-one".