259198125 has 20 divisors (see below), whose sum is σ = 431861760. Its totient is φ = 138238000.

The previous prime is 259198123. The next prime is 259198139. The reversal of 259198125 is 521891952.

It is not a de Polignac number, because 259198125 - 2¹ = 259198123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259198123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67245 + ... + 70994.

It is an arithmetic number, because the mean of its divisors is an integer number (21593088).

Almost surely, 2^259198125 is an apocalyptic number.

259198125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

259198125 is a deficient number, since it is larger than the sum of its proper divisors (172663635).

259198125 is an equidigital number, since it uses as much as digits as its factorization.

259198125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138262 (or 138247 counting only the distinct ones).

The product of its digits is 64800, while the sum is 42.

The square root of 259198125 is about 16099.6312069563. The cubic root of 259198125 is about 637.5936040947.

The spelling of 259198125 in words is "two hundred fifty-nine million, one hundred ninety-eight thousand, one hundred twenty-five".