716557057 has 4 divisors (see below), whose sum is σ = 728303956. Its totient is φ = 704810160.

The previous prime is 716557001. The next prime is 716557073. The reversal of 716557057 is 750755617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750755617 = 3313 ⋅226609.

It can be written as a sum of positive squares in 2 ways, for example, as 129754881 + 586802176 = 11391^2 + 24224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716557057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716557657) 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, 5873358 + ... + 5873479.

It is an arithmetic number, because the mean of its divisors is an integer number (182075989).

Almost surely, 2^716557057 is an apocalyptic number.

It is an amenable number.

716557057 is a deficient number, since it is larger than the sum of its proper divisors (11746899).

716557057 is a wasteful number, since it uses less digits than its factorization.

716557057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11746898.

The product of its (nonzero) digits is 257250, while the sum is 43.

The square root of 716557057 is about 26768.5833954657. The cubic root of 716557057 is about 894.8500344844.

The spelling of 716557057 in words is "seven hundred sixteen million, five hundred fifty-seven thousand, fifty-seven".