260993455 has 4 divisors (see below), whose sum is σ = 313192152. Its totient is φ = 208794760.

The previous prime is 260993407. The next prime is 260993459. The reversal of 260993455 is 554399062.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 260993455 - 2⁹ = 260992943 is a prime.

It is a super-3 number, since 3×260993455³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260993459) 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, 26099341 + ... + 26099350.

It is an arithmetic number, because the mean of its divisors is an integer number (78298038).

Almost surely, 2^260993455 is an apocalyptic number.

260993455 is a deficient number, since it is larger than the sum of its proper divisors (52198697).

260993455 is an equidigital number, since it uses as much as digits as its factorization.

260993455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52198696.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 260993455 is about 16155.2918574689. The cubic root of 260993455 is about 639.0623109079.

The spelling of 260993455 in words is "two hundred sixty million, nine hundred ninety-three thousand, four hundred fifty-five".