260309825 has 12 divisors (see below), whose sum is σ = 325983228. Its totient is φ = 206184000.

The previous prime is 260309801. The next prime is 260309839. The reversal of 260309825 is 528903062.

It can be written as a sum of positive squares in 6 ways, for example, as 6130576 + 254179249 = 2476^2 + 15943^2 .

It is not a de Polignac number, because 260309825 - 2⁶ = 260309761 is a prime.

It is a super-2 number, since 2×260309825² = 135522409983061250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49022 + ... + 54071.

It is an arithmetic number, because the mean of its divisors is an integer number (27165269).

Almost surely, 2^260309825 is an apocalyptic number.

260309825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

260309825 is a deficient number, since it is larger than the sum of its proper divisors (65673403).

260309825 is a wasteful number, since it uses less digits than its factorization.

260309825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103204 (or 103199 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 260309825 is about 16134.1199016246. The cubic root of 260309825 is about 638.5038496865.

The spelling of 260309825 in words is "two hundred sixty million, three hundred nine thousand, eight hundred twenty-five".