265224997 has 4 divisors (see below), whose sum is σ = 265364140. Its totient is φ = 265085856.

The previous prime is 265224979. The next prime is 265225003. The reversal of 265224997 is 799422562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152992161 + 112232836 = 12369^2 + 10594^2 .

It is a cyclic number.

It is not a de Polignac number, because 265224997 - 2²³ = 256836389 is a prime.

It is a pancake number, because a pancake can be divided into 265224997 parts by 23031 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265224907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66672 + ... + 70537.

It is an arithmetic number, because the mean of its divisors is an integer number (66341035).

Almost surely, 2^265224997 is an apocalyptic number.

It is an amenable number.

265224997 is a deficient number, since it is larger than the sum of its proper divisors (139143).

265224997 is a wasteful number, since it uses less digits than its factorization.

265224997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139142.

The product of its digits is 544320, while the sum is 46.

The square root of 265224997 is about 16285.7298577620. The cubic root of 265224997 is about 642.4975625075.

The spelling of 265224997 in words is "two hundred sixty-five million, two hundred twenty-four thousand, nine hundred ninety-seven".