51544105 has 16 divisors (see below), whose sum is σ = 63129024. Its totient is φ = 40392000.

The previous prime is 51544091. The next prime is 51544109. The reversal of 51544105 is 50144515.

It is a happy number.

It is not a de Polignac number, because 51544105 - 2¹⁹ = 51019817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51544105.

It is not an unprimeable number, because it can be changed into a prime (51544109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83779 + ... + 84391.

It is an arithmetic number, because the mean of its divisors is an integer number (3945564).

Almost surely, 2^51544105 is an apocalyptic number.

It is an amenable number.

51544105 is a deficient number, since it is larger than the sum of its proper divisors (11584919).

51544105 is a wasteful number, since it uses less digits than its factorization.

51544105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 51544105 is about 7179.4223305221. The cubic root of 51544105 is about 372.1571218376.

The spelling of 51544105 in words is "fifty-one million, five hundred forty-four thousand, one hundred five".