265705797 has 16 divisors (see below), whose sum is σ = 405642752. Its totient is φ = 151547760.

The previous prime is 265705793. The next prime is 265705799. The reversal of 265705797 is 797507562.

It is not a de Polignac number, because 265705797 - 2² = 265705793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265705793) 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, 79 + ... + 23052.

It is an arithmetic number, because the mean of its divisors is an integer number (25352672).

Almost surely, 2^265705797 is an apocalyptic number.

It is an amenable number.

265705797 is a deficient number, since it is larger than the sum of its proper divisors (139936955).

265705797 is a wasteful number, since it uses less digits than its factorization.

265705797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23688.

The product of its (nonzero) digits is 926100, while the sum is 48.

The square root of 265705797 is about 16300.4845633496. The cubic root of 265705797 is about 642.8855681047.

The spelling of 265705797 in words is "two hundred sixty-five million, seven hundred five thousand, seven hundred ninety-seven".