260002506 has 8 divisors (see below), whose sum is σ = 520005024. Its totient is φ = 86667500.

The previous prime is 260002493. The next prime is 260002513. The reversal of 260002506 is 605200062.

It is a sphenic number, since it is the product of 3 distinct primes.

260002506 is an admirable 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, 21666870 + ... + 21666881.

It is an arithmetic number, because the mean of its divisors is an integer number (65000628).

Almost surely, 2^260002506 is an apocalyptic number.

260002506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

260002506 is a wasteful number, since it uses less digits than its factorization.

260002506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43333756.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 260002506 is about 16124.5932041711. The cubic root of 260002506 is about 638.2524804635.

Adding to 260002506 its reverse (605200062), we get a palindrome (865202568).

The spelling of 260002506 in words is "two hundred sixty million, two thousand, five hundred six".