255508204421376 has 729 divisors, whose sum is σ = 826735095901533. Its totient is φ = 75866861813760.

The previous prime is 255508204421347. The next prime is 255508204421383. The reversal of 255508204421376 is 673124402805552.

The square root of 255508204421376 is 15984624.

It is a perfect power (a square), and thus also a powerful number.

255508204421376 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 0 + 8 + 204 + 421 + 3 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 198925072646400 + 56583131774976 = 14104080^2 + 7522176^2 .

It is a super-2 number, since 2×255508204421376² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 247825609981 + ... + 247825611011.

Almost surely, 2^{255508204421376} is an apocalyptic number.

255508204421376 is the 15984624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255508204421376

255508204421376 is an abundant number, since it is smaller than the sum of its proper divisors (571226891480157).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255508204421376 is an equidigital number, since it uses as much as digits as its factorization.

255508204421376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 54.

The spelling of 255508204421376 in words is "two hundred fifty-five trillion, five hundred eight billion, two hundred four million, four hundred twenty-one thousand, three hundred seventy-six".