720056365057 has 4 divisors (see below), whose sum is σ = 720645128640. Its totient is φ = 719467601476.

The previous prime is 720056365033. The next prime is 720056365069. The reversal of 720056365057 is 750563650027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 720056365057 - 2¹¹ = 720056363009 is a prime.

It is a super-2 number, since 2×720056365057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720056364998 and 720056365016.

It is not an unprimeable number, because it can be changed into a prime (720056365757) 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, 294379957 + ... + 294382402.

It is an arithmetic number, because the mean of its divisors is an integer number (180161282160).

Almost surely, 2^720056365057 is an apocalyptic number.

It is an amenable number.

720056365057 is a deficient number, since it is larger than the sum of its proper divisors (588763583).

720056365057 is a wasteful number, since it uses less digits than its factorization.

720056365057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588763582.

The product of its (nonzero) digits is 1323000, while the sum is 46.

The spelling of 720056365057 in words is "seven hundred twenty billion, fifty-six million, three hundred sixty-five thousand, fifty-seven".