51544997 has 8 divisors (see below), whose sum is σ = 58953600. Its totient is φ = 44147664.

The previous prime is 51544957. The next prime is 51545023. The reversal of 51544997 is 79944515.

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

It is a cyclic number.

It is not a de Polignac number, because 51544997 - 2¹⁴ = 51528613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544957) 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 7 ways as a sum of consecutive naturals, for example, 12704 + ... + 16262.

It is an arithmetic number, because the mean of its divisors is an integer number (7369200).

Almost surely, 2^51544997 is an apocalyptic number.

It is an amenable number.

51544997 is a deficient number, since it is larger than the sum of its proper divisors (7408603).

51544997 is a wasteful number, since it uses less digits than its factorization.

51544997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635.

The product of its digits is 226800, while the sum is 44.

The square root of 51544997 is about 7179.4844522431. The cubic root of 51544997 is about 372.1592686220.

The spelling of 51544997 in words is "fifty-one million, five hundred forty-four thousand, nine hundred ninety-seven".