255355504220455 has 16 divisors (see below), whose sum is σ = 307969246152000. Its totient is φ = 203255994712320.

The previous prime is 255355504220387. The next prime is 255355504220477. The reversal of 255355504220455 is 554022405553552.

It is not a de Polignac number, because 255355504220455 - 2¹⁵ = 255355504187687 is a prime.

It is a super-2 number, since 2×255355504220455² (a number of 30 digits) contains 22 as substring.

It is a congruent 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, 113631681 + ... + 115857109.

It is an arithmetic number, because the mean of its divisors is an integer number (19248077884500).

Almost surely, 2^{255355504220455} is an apocalyptic number.

255355504220455 is a deficient number, since it is larger than the sum of its proper divisors (52613741931545).

255355504220455 is a wasteful number, since it uses less digits than its factorization.

255355504220455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340954.

The product of its (nonzero) digits is 30000000, while the sum is 52.

The spelling of 255355504220455 in words is "two hundred fifty-five trillion, three hundred fifty-five billion, five hundred four million, two hundred twenty thousand, four hundred fifty-five".