264026501 has 2 divisors, whose sum is σ = 264026502. Its totient is φ = 264026500.

The previous prime is 264026491. The next prime is 264026519. The reversal of 264026501 is 105620462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219484225 + 44542276 = 14815^2 + 6674^2 .

It is a cyclic number.

It is not a de Polignac number, because 264026501 - 2⁶ = 264026437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264022501) 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 as a sum of consecutive naturals, namely, 132013250 + 132013251.

It is an arithmetic number, because the mean of its divisors is an integer number (132013251).

Almost surely, 2^264026501 is an apocalyptic number.

It is an amenable number.

264026501 is a deficient number, since it is larger than the sum of its proper divisors (1).

264026501 is an equidigital number, since it uses as much as digits as its factorization.

264026501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 264026501 is about 16248.8923007078. The cubic root of 264026501 is about 641.5283306515.

Adding to 264026501 its reverse (105620462), we get a palindrome (369646963).

The spelling of 264026501 in words is "two hundred sixty-four million, twenty-six thousand, five hundred one".