51613793 has 16 divisors (see below), whose sum is σ = 65923200. Its totient is φ = 39235200.

The previous prime is 51613777. The next prime is 51613801. The reversal of 51613793 is 39731615.

It is a cyclic number.

It is not a de Polignac number, because 51613793 - 2⁴ = 51613777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51613703) 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, 5018 + ... + 11331.

It is an arithmetic number, because the mean of its divisors is an integer number (4120200).

Almost surely, 2^51613793 is an apocalyptic number.

It is an amenable number.

51613793 is a deficient number, since it is larger than the sum of its proper divisors (14309407).

51613793 is a wasteful number, since it uses less digits than its factorization.

51613793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16408.

The product of its digits is 17010, while the sum is 35.

The square root of 51613793 is about 7184.2740064672. The cubic root of 51613793 is about 372.3247660084.

The spelling of 51613793 in words is "fifty-one million, six hundred thirteen thousand, seven hundred ninety-three".