260521012 has 6 divisors (see below), whose sum is σ = 455911778. Its totient is φ = 130260504.

The previous prime is 260521003. The next prime is 260521021. The reversal of 260521012 is 210125062.

It is an interprime number because it is at equal distance from previous prime (260521003) and next prime (260521021).

It can be written as a sum of positive squares in only one way, i.e., 246050596 + 14470416 = 15686^2 + 3804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32565123 + ... + 32565130.

Almost surely, 2^260521012 is an apocalyptic number.

It is an amenable number.

260521012 is a deficient number, since it is larger than the sum of its proper divisors (195390766).

260521012 is a wasteful number, since it uses less digits than its factorization.

260521012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65130257 (or 65130255 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 260521012 is about 16140.6633073118. The cubic root of 260521012 is about 638.6764738062.

Adding to 260521012 its reverse (210125062), we get a palindrome (470646074).

The spelling of 260521012 in words is "two hundred sixty million, five hundred twenty-one thousand, twelve".