260572505 has 4 divisors (see below), whose sum is σ = 312687012. Its totient is φ = 208458000.

The previous prime is 260572483. The next prime is 260572513. The reversal of 260572505 is 505275062.

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

It can be written as a sum of positive squares in 2 ways, for example, as 192987664 + 67584841 = 13892^2 + 8221^2 .

It is not a de Polignac number, because 260572505 - 2¹² = 260568409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26057246 + ... + 26057255.

It is an arithmetic number, because the mean of its divisors is an integer number (78171753).

Almost surely, 2^260572505 is an apocalyptic number.

It is an amenable number.

260572505 is a deficient number, since it is larger than the sum of its proper divisors (52114507).

260572505 is an equidigital number, since it uses as much as digits as its factorization.

260572505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52114506.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 260572505 is about 16142.2583612083. The cubic root of 260572505 is about 638.7185500043.

The spelling of 260572505 in words is "two hundred sixty million, five hundred seventy-two thousand, five hundred five".