51106565 has 8 divisors (see below), whose sum is σ = 61585920. Its totient is φ = 40713232.

The previous prime is 51106543. The next prime is 51106571. The reversal of 51106565 is 56560115.

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 51106565 - 2⁶ = 51106501 is a prime.

It is a super-2 number, since 2×51106565² = 5223761972198450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20189 + ... + 22578.

It is an arithmetic number, because the mean of its divisors is an integer number (7698240).

Almost surely, 2^51106565 is an apocalyptic number.

It is an amenable number.

51106565 is a deficient number, since it is larger than the sum of its proper divisors (10479355).

51106565 is a wasteful number, since it uses less digits than its factorization.

51106565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43011.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 51106565 is about 7148.8855774869. The cubic root of 51106565 is about 371.1010905783.

The spelling of 51106565 in words is "fifty-one million, one hundred six thousand, five hundred sixty-five".