51104709 has 16 divisors (see below), whose sum is σ = 78154240. Its totient is φ = 32970240.

The previous prime is 51104693. The next prime is 51104723. The reversal of 51104709 is 90740115.

It is not a de Polignac number, because 51104709 - 2⁴ = 51104693 is a prime.

It is a super-2 number, since 2×51104709² = 5223382563949362, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51103709) 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, 29692 + ... + 31365.

It is an arithmetic number, because the mean of its divisors is an integer number (4884640).

Almost surely, 2^51104709 is an apocalyptic number.

It is an amenable number.

51104709 is a deficient number, since it is larger than the sum of its proper divisors (27049531).

51104709 is a wasteful number, since it uses less digits than its factorization.

51104709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61097 (or 61091 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 51104709 is about 7148.7557658658. The cubic root of 51104709 is about 371.0965981877.

The spelling of 51104709 in words is "fifty-one million, one hundred four thousand, seven hundred nine".