255520330394 has 32 divisors (see below), whose sum is σ = 441938681856. Its totient is φ = 108537087600.

The previous prime is 255520330357. The next prime is 255520330423. The reversal of 255520330394 is 493033025552.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528419 + ... + 888969.

It is an arithmetic number, because the mean of its divisors is an integer number (13810583808).

Almost surely, 2^255520330394 is an apocalyptic number.

255520330394 is a deficient number, since it is larger than the sum of its proper divisors (186418351462).

255520330394 is a wasteful number, since it uses less digits than its factorization.

255520330394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361010.

The product of its (nonzero) digits is 486000, while the sum is 41.

The spelling of 255520330394 in words is "two hundred fifty-five billion, five hundred twenty million, three hundred thirty thousand, three hundred ninety-four".