264620025 has 18 divisors (see below), whose sum is σ = 473964270. Its totient is φ = 141130560.

The previous prime is 264620023. The next prime is 264620047. The reversal of 264620025 is 520026462.

It can be written as a sum of positive squares in 3 ways, for example, as 622521 + 263997504 = 789^2 + 16248^2 .

It is not a de Polignac number, because 264620025 - 2¹ = 264620023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264620023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 587820 + ... + 588269.

Almost surely, 2^264620025 is an apocalyptic number.

264620025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264620025 is a deficient number, since it is larger than the sum of its proper divisors (209344245).

264620025 is a wasteful number, since it uses less digits than its factorization.

264620025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176105 (or 1176097 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 264620025 is about 16267.1455701361. The cubic root of 264620025 is about 642.0086833192.

Adding to 264620025 its reverse (520026462), we get a palindrome (784646487).

The spelling of 264620025 in words is "two hundred sixty-four million, six hundred twenty thousand, twenty-five".