260276257 has 4 divisors (see below), whose sum is σ = 271592640. Its totient is φ = 248959876.

The previous prime is 260276201. The next prime is 260276267. The reversal of 260276257 is 752672062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260276257 - 2⁷ = 260276129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260276267) 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, 5658157 + ... + 5658202.

It is an arithmetic number, because the mean of its divisors is an integer number (67898160).

Almost surely, 2^260276257 is an apocalyptic number.

It is an amenable number.

260276257 is a deficient number, since it is larger than the sum of its proper divisors (11316383).

260276257 is a wasteful number, since it uses less digits than its factorization.

260276257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11316382.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 260276257 is about 16133.0795882249. The cubic root of 260276257 is about 638.4764026260.

The spelling of 260276257 in words is "two hundred sixty million, two hundred seventy-six thousand, two hundred fifty-seven".