265005064 has 8 divisors (see below), whose sum is σ = 496884510. Its totient is φ = 132502528.

The previous prime is 265005053. The next prime is 265005071. The reversal of 265005064 is 460500562.

It can be written as a sum of positive squares in only one way, i.e., 233172900 + 31832164 = 15270^2 + 5642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16562809 + ... + 16562824.

Almost surely, 2^265005064 is an apocalyptic number.

It is an amenable number.

265005064 is a deficient number, since it is larger than the sum of its proper divisors (231879446).

265005064 is a wasteful number, since it uses less digits than its factorization.

265005064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33125639 (or 33125635 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 265005064 is about 16278.9761348802. The cubic root of 265005064 is about 642.3199202608.

The spelling of 265005064 in words is "two hundred sixty-five million, five thousand, sixty-four".