259387725 has 12 divisors (see below), whose sum is σ = 428854496. Its totient is φ = 138340080.

The previous prime is 259387697. The next prime is 259387727. The reversal of 259387725 is 527783952.

It is a happy number.

It is not a de Polignac number, because 259387725 - 2²⁰ = 258339149 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 (259387727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1729177 + ... + 1729326.

Almost surely, 2^259387725 is an apocalyptic number.

259387725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

259387725 is a deficient number, since it is larger than the sum of its proper divisors (169466771).

259387725 is a wasteful number, since it uses less digits than its factorization.

259387725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458516 (or 3458511 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 259387725 is about 16105.5184641787. The cubic root of 259387725 is about 637.7490299662.

The spelling of 259387725 in words is "two hundred fifty-nine million, three hundred eighty-seven thousand, seven hundred twenty-five".