265056401 has 4 divisors (see below), whose sum is σ = 280647972. Its totient is φ = 249464832.

The previous prime is 265056371. The next prime is 265056409. The reversal of 265056401 is 104650562.

265056401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201072400 + 63984001 = 14180^2 + 7999^2 .

It is a cyclic number.

It is not a de Polignac number, because 265056401 - 2²² = 260862097 is a prime.

It is a super-2 number, since 2×265056401² = 140509791422145602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265056409) 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, 7795760 + ... + 7795793.

It is an arithmetic number, because the mean of its divisors is an integer number (70161993).

Almost surely, 2^265056401 is an apocalyptic number.

It is an amenable number.

265056401 is a deficient number, since it is larger than the sum of its proper divisors (15591571).

265056401 is a wasteful number, since it uses less digits than its factorization.

265056401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15591570.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 265056401 is about 16280.5528468784. The cubic root of 265056401 is about 642.3613944980.

The spelling of 265056401 in words is "two hundred sixty-five million, fifty-six thousand, four hundred one".