656313026 has 4 divisors (see below), whose sum is σ = 984469542. Its totient is φ = 328156512.

The previous prime is 656313023. The next prime is 656313071. The reversal of 656313026 is 620313656.

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

It can be written as a sum of positive squares in only one way, i.e., 561737401 + 94575625 = 23701^2 + 9725^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 656312983 and 656313001.

It is not an unprimeable number, because it can be changed into a prime (656313023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164078255 + ... + 164078258.

Almost surely, 2^656313026 is an apocalyptic number.

656313026 is a deficient number, since it is larger than the sum of its proper divisors (328156516).

656313026 is a wasteful number, since it uses less digits than its factorization.

656313026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328156515.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 656313026 is about 25618.6070269248. The cubic root of 656313026 is about 869.0344800206.

The spelling of 656313026 in words is "six hundred fifty-six million, three hundred thirteen thousand, twenty-six".