71600051 has 4 divisors (see below), whose sum is σ = 71664600. Its totient is φ = 71535504.

The previous prime is 71600047. The next prime is 71600071. The reversal of 71600051 is 15000617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71600051 - 2² = 71600047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71599996 and 71600032.

It is not an unprimeable number, because it can be changed into a prime (71600041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30581 + ... + 32838.

It is an arithmetic number, because the mean of its divisors is an integer number (17916150).

Almost surely, 2^71600051 is an apocalyptic number.

71600051 is a deficient number, since it is larger than the sum of its proper divisors (64549).

71600051 is a wasteful number, since it uses less digits than its factorization.

71600051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64548.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 71600051 is about 8461.6813341085. The cubic root of 71600051 is about 415.2450306971.

Adding to 71600051 its reverse (15000617), we get a palindrome (86600668).

The spelling of 71600051 in words is "seventy-one million, six hundred thousand, fifty-one".