261255467 has 8 divisors (see below), whose sum is σ = 285826800. Its totient is φ = 236820960.

The previous prime is 261255389. The next prime is 261255479. The reversal of 261255467 is 764552162.

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 261255467 - 2¹⁰ = 261254443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 261255467.

It is not an unprimeable number, because it can be changed into a prime (261255067) 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, 30188 + ... + 37865.

It is an arithmetic number, because the mean of its divisors is an integer number (35728350).

Almost surely, 2^261255467 is an apocalyptic number.

261255467 is a deficient number, since it is larger than the sum of its proper divisors (24571333).

261255467 is a wasteful number, since it uses less digits than its factorization.

261255467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68413.

The product of its digits is 100800, while the sum is 38.

The square root of 261255467 is about 16163.3989927861. The cubic root of 261255467 is about 639.2760914842.

The spelling of 261255467 in words is "two hundred sixty-one million, two hundred fifty-five thousand, four hundred sixty-seven".