264561485 has 8 divisors (see below), whose sum is σ = 319496856. Its totient is φ = 210300480.

The previous prime is 264561469. The next prime is 264561509. The reversal of 264561485 is 584165462.

It can be written as a sum of positive squares in 4 ways, for example, as 8145316 + 256416169 = 2854^2 + 16013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264561485 - 2⁴ = 264561469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167726 + ... + 169295.

It is an arithmetic number, because the mean of its divisors is an integer number (39937107).

Almost surely, 2^264561485 is an apocalyptic number.

It is an amenable number.

264561485 is a deficient number, since it is larger than the sum of its proper divisors (54935371).

264561485 is a wasteful number, since it uses less digits than its factorization.

264561485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337183.

The product of its digits is 230400, while the sum is 41.

The square root of 264561485 is about 16265.3461383396. The cubic root of 264561485 is about 641.9613374944.

The spelling of 264561485 in words is "two hundred sixty-four million, five hundred sixty-one thousand, four hundred eighty-five".