265013893 has 2 divisors, whose sum is σ = 265013894. Its totient is φ = 265013892.

The previous prime is 265013857. The next prime is 265013911. The reversal of 265013893 is 398310562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139192804 + 125821089 = 11798^2 + 11217^2 .

It is a cyclic number.

It is not a de Polignac number, because 265013893 - 2²¹ = 262916741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265013293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132506946 + 132506947.

It is an arithmetic number, because the mean of its divisors is an integer number (132506947).

Almost surely, 2^265013893 is an apocalyptic number.

It is an amenable number.

265013893 is a deficient number, since it is larger than the sum of its proper divisors (1).

265013893 is an equidigital number, since it uses as much as digits as its factorization.

265013893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 265013893 is about 16279.2473106099. The cubic root of 265013893 is about 642.3270534322.

The spelling of 265013893 in words is "two hundred sixty-five million, thirteen thousand, eight hundred ninety-three".