255970219 has 4 divisors (see below), whose sum is σ = 257183560. Its totient is φ = 254756880.

The previous prime is 255970163. The next prime is 255970237. The reversal of 255970219 is 912079552.

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 255970219 - 2²³ = 247581611 is a prime.

It is a super-2 number, since 2×255970219² = 131041506029815922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255970919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606354 + ... + 606775.

It is an arithmetic number, because the mean of its divisors is an integer number (64295890).

Almost surely, 2^255970219 is an apocalyptic number.

255970219 is a deficient number, since it is larger than the sum of its proper divisors (1213341).

255970219 is a wasteful number, since it uses less digits than its factorization.

255970219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213340.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 255970219 is about 15999.0693166821. The cubic root of 255970219 is about 634.9357977539.

The spelling of 255970219 in words is "two hundred fifty-five million, nine hundred seventy thousand, two hundred nineteen".