255630994 has 8 divisors (see below), whose sum is σ = 384041088. Its totient is φ = 127617300.

The previous prime is 255630971. The next prime is 255631007. The reversal of 255630994 is 499036552.

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

It is a self number, because there is not a number n which added to its sum of digits gives 255630994.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97482 + ... + 100069.

It is an arithmetic number, because the mean of its divisors is an integer number (48005136).

Almost surely, 2^255630994 is an apocalyptic number.

255630994 is a deficient number, since it is larger than the sum of its proper divisors (128410094).

255630994 is a wasteful number, since it uses less digits than its factorization.

255630994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198200.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 255630994 is about 15988.4644040633. The cubic root of 255630994 is about 634.6551904840.

The spelling of 255630994 in words is "two hundred fifty-five million, six hundred thirty thousand, nine hundred ninety-four".