264521532 has 24 divisors (see below), whose sum is σ = 673327872. Its totient is φ = 80158000.

The previous prime is 264521531. The next prime is 264521533. The reversal of 264521532 is 235125462.

It is an interprime number because it is at equal distance from previous prime (264521531) and next prime (264521533).

It is a self number, because there is not a number n which added to its sum of digits gives 264521532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264521531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001844 + ... + 1002107.

It is an arithmetic number, because the mean of its divisors is an integer number (28055328).

Almost surely, 2^264521532 is an apocalyptic number.

264521532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

264521532 is an abundant number, since it is smaller than the sum of its proper divisors (408806340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264521532 is a wasteful number, since it uses less digits than its factorization.

264521532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003969 (or 2003967 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 264521532 is about 16264.1179287412. The cubic root of 264521532 is about 641.9290204037.

Adding to 264521532 its reverse (235125462), we get a palindrome (499646994).

The spelling of 264521532 in words is "two hundred sixty-four million, five hundred twenty-one thousand, five hundred thirty-two".