71715053 has 4 divisors (see below), whose sum is σ = 71841660. Its totient is φ = 71588448.

The previous prime is 71715047. The next prime is 71715067. The reversal of 71715053 is 35051717.

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 10843849 + 60871204 = 3293^2 + 7802^2 .

It is a cyclic number.

It is not a de Polignac number, because 71715053 - 2⁴ = 71715037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71715073) 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, 62450 + ... + 63587.

It is an arithmetic number, because the mean of its divisors is an integer number (17960415).

Almost surely, 2^71715053 is an apocalyptic number.

It is an amenable number.

71715053 is a deficient number, since it is larger than the sum of its proper divisors (126607).

71715053 is a wasteful number, since it uses less digits than its factorization.

71715053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126606.

The product of its (nonzero) digits is 3675, while the sum is 29.

The square root of 71715053 is about 8468.4740656154. The cubic root of 71715053 is about 415.4672300955.

The spelling of 71715053 in words is "seventy-one million, seven hundred fifteen thousand, fifty-three".