71053529 has 4 divisors (see below), whose sum is σ = 71421876. Its totient is φ = 70685184.

The previous prime is 71053447. The next prime is 71053553. The reversal of 71053529 is 92535017.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38105929 + 32947600 = 6173^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 71053529 - 2⁸ = 71053273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71053495 and 71053504.

It is not an unprimeable number, because it can be changed into a prime (71053589) 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, 183884 + ... + 184269.

It is an arithmetic number, because the mean of its divisors is an integer number (17855469).

Almost surely, 2^71053529 is an apocalyptic number.

It is an amenable number.

71053529 is a deficient number, since it is larger than the sum of its proper divisors (368347).

71053529 is a wasteful number, since it uses less digits than its factorization.

71053529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368346.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 71053529 is about 8429.3255364827. The cubic root of 71053529 is about 414.1858116338.

The spelling of 71053529 in words is "seventy-one million, fifty-three thousand, five hundred twenty-nine".