260557525 has 6 divisors (see below), whose sum is σ = 323091362. Its totient is φ = 208446000.

The previous prime is 260557523. The next prime is 260557529. The reversal of 260557525 is 525755062.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20958084 + 239599441 = 4578^2 + 15479^2 .

It is not a de Polignac number, because 260557525 - 2¹ = 260557523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260557523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5211126 + ... + 5211175.

Almost surely, 2^260557525 is an apocalyptic number.

260557525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

260557525 is a deficient number, since it is larger than the sum of its proper divisors (62533837).

260557525 is a wasteful number, since it uses less digits than its factorization.

260557525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422311 (or 10422306 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 260557525 is about 16141.7943550276. The cubic root of 260557525 is about 638.7063100492.

The spelling of 260557525 in words is "two hundred sixty million, five hundred fifty-seven thousand, five hundred twenty-five".