259801955 has 8 divisors (see below), whose sum is σ = 356299872. Its totient is φ = 178149888.

The previous prime is 259801943. The next prime is 259801967. The reversal of 259801955 is 559108952.

It is an interprime number because it is at equal distance from previous prime (259801943) and next prime (259801967).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 259801955 - 2⁶ = 259801891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3711422 + ... + 3711491.

It is an arithmetic number, because the mean of its divisors is an integer number (44537484).

Almost surely, 2^259801955 is an apocalyptic number.

259801955 is a deficient number, since it is larger than the sum of its proper divisors (96497917).

259801955 is an equidigital number, since it uses as much as digits as its factorization.

259801955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422925.

The product of its (nonzero) digits is 162000, while the sum is 44.

The square root of 259801955 is about 16118.3732119591. The cubic root of 259801955 is about 638.0883344834.

The spelling of 259801955 in words is "two hundred fifty-nine million, eight hundred one thousand, nine hundred fifty-five".