265532381 has 8 divisors (see below), whose sum is σ = 275490720. Its totient is φ = 255627568.

The previous prime is 265532369. The next prime is 265532383. The reversal of 265532381 is 183235562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265532381 - 2¹⁴ = 265515997 is a prime.

It is a super-2 number, since 2×265532381² = 141014890719058322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265532383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3131 + ... + 23256.

It is an arithmetic number, because the mean of its divisors is an integer number (34436340).

Almost surely, 2^265532381 is an apocalyptic number.

It is an amenable number.

265532381 is a deficient number, since it is larger than the sum of its proper divisors (9958339).

265532381 is a wasteful number, since it uses less digits than its factorization.

265532381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26763.

The product of its digits is 43200, while the sum is 35.

The square root of 265532381 is about 16295.1643440623. The cubic root of 265532381 is about 642.7456754012.

The spelling of 265532381 in words is "two hundred sixty-five million, five hundred thirty-two thousand, three hundred eighty-one".