51104493 has 16 divisors (see below), whose sum is σ = 82593600. Its totient is φ = 30972240.

The previous prime is 51104489. The next prime is 51104497. The reversal of 51104493 is 39440115.

It is an interprime number because it is at equal distance from previous prime (51104489) and next prime (51104497).

It is not a de Polignac number, because 51104493 - 2² = 51104489 is a prime.

It is a super-3 number, since 3×51104493³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51104497) 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, 85738 + ... + 86331.

It is an arithmetic number, because the mean of its divisors is an integer number (5162100).

Almost surely, 2^51104493 is an apocalyptic number.

It is an amenable number.

51104493 is a deficient number, since it is larger than the sum of its proper divisors (31489107).

51104493 is a wasteful number, since it uses less digits than its factorization.

51104493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172089 (or 172083 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51104493 is about 7148.7406583258. The cubic root of 51104493 is about 371.0960753593.

The spelling of 51104493 in words is "fifty-one million, one hundred four thousand, four hundred ninety-three".