275450215 has 4 divisors (see below), whose sum is σ = 330540264. Its totient is φ = 220360168.

The previous prime is 275450183. The next prime is 275450233. The reversal of 275450215 is 512054572.

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

It is a cyclic number.

It is not a de Polignac number, because 275450215 - 2⁵ = 275450183 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27545017 + ... + 27545026.

It is an arithmetic number, because the mean of its divisors is an integer number (82635066).

Almost surely, 2^275450215 is an apocalyptic number.

275450215 is a deficient number, since it is larger than the sum of its proper divisors (55090049).

275450215 is an equidigital number, since it uses as much as digits as its factorization.

275450215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55090048.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 275450215 is about 16596.6928934653. The cubic root of 275450215 is about 650.6504061695.

The spelling of 275450215 in words is "two hundred seventy-five million, four hundred fifty thousand, two hundred fifteen".