259909472925 has 120 divisors (see below), whose sum is σ = 510145212456. Its totient is φ = 130366402560.

The previous prime is 259909472887. The next prime is 259909472929. The reversal of 259909472925 is 529274909952.

259909472925 is a `hidden beast` number, since 2 + 59 + 90 + 9 + 472 + 9 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 59759713764 + 200149759161 = 244458^2 + 447381^2 .

It is not a de Polignac number, because 259909472925 - 2¹² = 259909468829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259909472929) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 73564459 + ... + 73567991.

Almost surely, 2^259909472925 is an apocalyptic number.

259909472925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

259909472925 is a deficient number, since it is larger than the sum of its proper divisors (250235739531).

259909472925 is a wasteful number, since it uses less digits than its factorization.

259909472925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709 (or 5695 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 63.

The spelling of 259909472925 in words is "two hundred fifty-nine billion, nine hundred nine million, four hundred seventy-two thousand, nine hundred twenty-five".