250135505 has 8 divisors (see below), whose sum is σ = 302968512. Its totient is φ = 198237808.

The previous prime is 250135499. The next prime is 250135537. The reversal of 250135505 is 505531052.

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

It is a cyclic number.

It is not a de Polignac number, because 250135505 - 2²⁴ = 233358289 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, 233237 + ... + 234306.

It is an arithmetic number, because the mean of its divisors is an integer number (37871064).

Almost surely, 2^250135505 is an apocalyptic number.

It is an amenable number.

250135505 is a deficient number, since it is larger than the sum of its proper divisors (52833007).

250135505 is a wasteful number, since it uses less digits than its factorization.

250135505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467655.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 250135505 is about 15815.6727646977. The cubic root of 250135505 is about 630.0743214578.

Adding to 250135505 its reverse (505531052), we get a palindrome (755666557).

The spelling of 250135505 in words is "two hundred fifty million, one hundred thirty-five thousand, five hundred five".