264663601 has 4 divisors (see below), whose sum is σ = 268613872. Its totient is φ = 260713332.

The previous prime is 264663583. The next prime is 264663611. The reversal of 264663601 is 106366462.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106366462 = 2 ⋅53183231.

It is a cyclic number.

It is not a de Polignac number, because 264663601 - 2⁷ = 264663473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264663611) 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, 1975035 + ... + 1975168.

It is an arithmetic number, because the mean of its divisors is an integer number (67153468).

Almost surely, 2^264663601 is an apocalyptic number.

It is an amenable number.

264663601 is a deficient number, since it is larger than the sum of its proper divisors (3950271).

264663601 is an equidigital number, since it uses as much as digits as its factorization.

264663601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950270.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 264663601 is about 16268.4849017971. The cubic root of 264663601 is about 642.0439220669.

The spelling of 264663601 in words is "two hundred sixty-four million, six hundred sixty-three thousand, six hundred one".