265605051 has 16 divisors (see below), whose sum is σ = 358166304. Its totient is φ = 175067904.

The previous prime is 265605019. The next prime is 265605083. The reversal of 265605051 is 150506562.

It is an interprime number because it is at equal distance from previous prime (265605019) and next prime (265605083).

It is not a de Polignac number, because 265605051 - 2⁵ = 265605019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265605451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112681 + ... + 115013.

It is an arithmetic number, because the mean of its divisors is an integer number (22385394).

Almost surely, 2^265605051 is an apocalyptic number.

265605051 is a deficient number, since it is larger than the sum of its proper divisors (92561253).

265605051 is a wasteful number, since it uses less digits than its factorization.

265605051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 265605051 is about 16297.3939941329. The cubic root of 265605051 is about 642.8043048706.

The spelling of 265605051 in words is "two hundred sixty-five million, six hundred five thousand, fifty-one".