716262521 has 8 divisors (see below), whose sum is σ = 771940680. Its totient is φ = 660667392.

The previous prime is 716262517. The next prime is 716262541. The reversal of 716262521 is 125262617.

716262521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25361296 + 690901225 = 5036^2 + 26285^2 .

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 716262521 - 2² = 716262517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716262541) 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, 2216 + ... + 37913.

It is an arithmetic number, because the mean of its divisors is an integer number (96492585).

Almost surely, 2^716262521 is an apocalyptic number.

It is an amenable number.

716262521 is a deficient number, since it is larger than the sum of its proper divisors (55678159).

716262521 is a wasteful number, since it uses less digits than its factorization.

716262521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41515.

The product of its digits is 10080, while the sum is 32.

The square root of 716262521 is about 26763.0813061576. The cubic root of 716262521 is about 894.7274103018.

It can be divided in two parts, 71626 and 2521, that added together give a palindrome (74147).

The spelling of 716262521 in words is "seven hundred sixteen million, two hundred sixty-two thousand, five hundred twenty-one".