260815506 has 16 divisors (see below), whose sum is σ = 596149824. Its totient is φ = 74518704.

The previous prime is 260815501. The next prime is 260815519. The reversal of 260815506 is 605518062.

260815506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (260815501) 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, 3104905 + ... + 3104988.

It is an arithmetic number, because the mean of its divisors is an integer number (37259364).

Almost surely, 2^260815506 is an apocalyptic number.

260815506 is an abundant number, since it is smaller than the sum of its proper divisors (335334318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260815506 is a wasteful number, since it uses less digits than its factorization.

260815506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209905.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 260815506 is about 16149.7834660407. The cubic root of 260815506 is about 638.9170373360.

The spelling of 260815506 in words is "two hundred sixty million, eight hundred fifteen thousand, five hundred six".