656285001 has 4 divisors (see below), whose sum is σ = 875046672. Its totient is φ = 437523332.

The previous prime is 656284957. The next prime is 656285009. The reversal of 656285001 is 100582656.

656285001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 656285001 - 2²³ = 647896393 is a prime.

It is a super-3 number, since 3×656285001³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (656285009) 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, 109380831 + ... + 109380836.

It is an arithmetic number, because the mean of its divisors is an integer number (218761668).

Almost surely, 2^656285001 is an apocalyptic number.

It is an amenable number.

656285001 is a deficient number, since it is larger than the sum of its proper divisors (218761671).

656285001 is a wasteful number, since it uses less digits than its factorization.

656285001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218761670.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 656285001 is about 25618.0600553594. The cubic root of 656285001 is about 869.0221103957.

The spelling of 656285001 in words is "six hundred fifty-six million, two hundred eighty-five thousand, one".