265005057 has 16 divisors (see below), whose sum is σ = 369290880. Its totient is φ = 168719232.

The previous prime is 265005053. The next prime is 265005071. The reversal of 265005057 is 750500562.

It is not a de Polignac number, because 265005057 - 2² = 265005053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265005053) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 46213 + ... + 51629.

It is an arithmetic number, because the mean of its divisors is an integer number (23080680).

Almost surely, 2^265005057 is an apocalyptic number.

It is an amenable number.

265005057 is a deficient number, since it is larger than the sum of its proper divisors (104285823).

265005057 is a wasteful number, since it uses less digits than its factorization.

265005057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 265005057 is about 16278.9759198790. The cubic root of 265005057 is about 642.3199146053.

The spelling of 265005057 in words is "two hundred sixty-five million, five thousand, fifty-seven".