264550513 has 4 divisors (see below), whose sum is σ = 269034480. Its totient is φ = 260066548.

The previous prime is 264550501. The next prime is 264550523. The reversal of 264550513 is 315055462.

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 a de Polignac number, because none of the positive numbers 2^k-264550513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264550523) 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, 2241895 + ... + 2242012.

It is an arithmetic number, because the mean of its divisors is an integer number (67258620).

Almost surely, 2^264550513 is an apocalyptic number.

It is an amenable number.

264550513 is a deficient number, since it is larger than the sum of its proper divisors (4483967).

264550513 is an equidigital number, since it uses as much as digits as its factorization.

264550513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483966.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 264550513 is about 16265.0088533637. The cubic root of 264550513 is about 641.9524628123.

The spelling of 264550513 in words is "two hundred sixty-four million, five hundred fifty thousand, five hundred thirteen".