51549117 has 8 divisors (see below), whose sum is σ = 72775296. Its totient is φ = 32344512.

The previous prime is 51549107. The next prime is 51549137. The reversal of 51549117 is 71194515.

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

It is not a de Polignac number, because 51549117 - 2¹⁰ = 51548093 is a prime.

It is a super-2 number, since 2×51549117² = 5314622926959378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51549107) 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, 505333 + ... + 505434.

It is an arithmetic number, because the mean of its divisors is an integer number (9096912).

Almost surely, 2^51549117 is an apocalyptic number.

It is an amenable number.

51549117 is a deficient number, since it is larger than the sum of its proper divisors (21226179).

51549117 is a wasteful number, since it uses less digits than its factorization.

51549117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010787.

The product of its digits is 6300, while the sum is 33.

The square root of 51549117 is about 7179.7713751902. The cubic root of 51549117 is about 372.1691839414.

The spelling of 51549117 in words is "fifty-one million, five hundred forty-nine thousand, one hundred seventeen".