350872505 has 4 divisors (see below), whose sum is σ = 421047012. Its totient is φ = 280698000.

The previous prime is 350872471. The next prime is 350872519. The reversal of 350872505 is 505278053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 273009529 + 77862976 = 16523^2 + 8824^2 .

It is not a de Polignac number, because 350872505 - 2¹⁸ = 350610361 is a prime.

It is a super-2 number, since 2×350872505² = 246223029529950050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35087246 + ... + 35087255.

It is an arithmetic number, because the mean of its divisors is an integer number (105261753).

Almost surely, 2^350872505 is an apocalyptic number.

It is an amenable number.

350872505 is a deficient number, since it is larger than the sum of its proper divisors (70174507).

350872505 is an equidigital number, since it uses as much as digits as its factorization.

350872505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70174506.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 350872505 is about 18731.5910963271. The cubic root of 350872505 is about 705.3149875924.

The spelling of 350872505 in words is "three hundred fifty million, eight hundred seventy-two thousand, five hundred five".