259252506 has 12 divisors (see below), whose sum is σ = 561713802. Its totient is φ = 86417496.

The previous prime is 259252493. The next prime is 259252507. The reversal of 259252506 is 605252952.

It can be written as a sum of positive squares in only one way, i.e., 177982281 + 81270225 = 13341^2 + 9015^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (259252507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7201441 + ... + 7201476.

Almost surely, 2^259252506 is an apocalyptic number.

259252506 is an abundant number, since it is smaller than the sum of its proper divisors (302461296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

259252506 is a wasteful number, since it uses less digits than its factorization.

259252506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14402925 (or 14402922 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 259252506 is about 16101.3200079993. The cubic root of 259252506 is about 637.6381910341.

The spelling of 259252506 in words is "two hundred fifty-nine million, two hundred fifty-two thousand, five hundred six".