261055262 has 16 divisors (see below), whose sum is σ = 422356032. Its totient is φ = 120300960.

The previous prime is 261055261. The next prime is 261055271. The reversal of 261055262 is 262550162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261055261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10187 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (26397252).

Almost surely, 2^261055262 is an apocalyptic number.

261055262 is a deficient number, since it is larger than the sum of its proper divisors (161300770).

261055262 is a wasteful number, since it uses less digits than its factorization.

261055262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15523.

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

The square root of 261055262 is about 16157.2046468441. The cubic root of 261055262 is about 639.1127533053.

The spelling of 261055262 in words is "two hundred sixty-one million, fifty-five thousand, two hundred sixty-two".