264525623 has 4 divisors (see below), whose sum is σ = 268251408. Its totient is φ = 260799840.

The previous prime is 264525589. The next prime is 264525631. The reversal of 264525623 is 326525462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326525462 = 2 ⋅163262731.

It is a cyclic number.

It is not a de Polignac number, because 264525623 - 2¹⁰ = 264524599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264525223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862786 + ... + 1862927.

It is an arithmetic number, because the mean of its divisors is an integer number (67062852).

Almost surely, 2^264525623 is an apocalyptic number.

264525623 is a deficient number, since it is larger than the sum of its proper divisors (3725785).

264525623 is an equidigital number, since it uses as much as digits as its factorization.

264525623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725784.

The product of its digits is 86400, while the sum is 35.

The square root of 264525623 is about 16264.2436959116. The cubic root of 264525623 is about 641.9323296719.

The spelling of 264525623 in words is "two hundred sixty-four million, five hundred twenty-five thousand, six hundred twenty-three".