264420553 has 2 divisors, whose sum is σ = 264420554. Its totient is φ = 264420552.

The previous prime is 264420539. The next prime is 264420577. The reversal of 264420553 is 355024462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138015504 + 126405049 = 11748^2 + 11243^2 .

It is a cyclic number.

It is not a de Polignac number, because 264420553 - 2⁹ = 264420041 is a prime.

It is not a weakly prime, because it can be changed into another prime (264420523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132210276 + 132210277.

It is an arithmetic number, because the mean of its divisors is an integer number (132210277).

Almost surely, 2^264420553 is an apocalyptic number.

It is an amenable number.

264420553 is a deficient number, since it is larger than the sum of its proper divisors (1).

264420553 is an equidigital number, since it uses as much as digits as its factorization.

264420553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 264420553 is about 16261.0132833105. The cubic root of 264420553 is about 641.8473262341.

The spelling of 264420553 in words is "two hundred sixty-four million, four hundred twenty thousand, five hundred fifty-three".