51613727 has 8 divisors (see below), whose sum is σ = 56864592. Its totient is φ = 46456000.

The previous prime is 51613703. The next prime is 51613733. The reversal of 51613727 is 72731615.

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 51613727 - 2¹⁰ = 51612703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51613693 and 51613702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51613777) 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, 22118 + ... + 24339.

It is an arithmetic number, because the mean of its divisors is an integer number (7108074).

Almost surely, 2^51613727 is an apocalyptic number.

51613727 is a deficient number, since it is larger than the sum of its proper divisors (5250865).

51613727 is a wasteful number, since it uses less digits than its factorization.

51613727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46569.

The product of its digits is 8820, while the sum is 32.

The square root of 51613727 is about 7184.2694130997. The cubic root of 51613727 is about 372.3246073076.

It can be divided in two parts, 5161 and 3727, that added together give a palindrome (8888).

The spelling of 51613727 in words is "fifty-one million, six hundred thirteen thousand, seven hundred twenty-seven".