255943305450 has 72 divisors (see below), whose sum is σ = 785867835168. Its totient is φ = 58501326240.

The previous prime is 255943305437. The next prime is 255943305461. The reversal of 255943305450 is 54503349552.

255943305450 is a `hidden beast` number, since 2 + 5 + 594 + 3 + 3 + 0 + 5 + 4 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 255943305396 and 255943305405.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40622772 + ... + 40629071.

It is an arithmetic number, because the mean of its divisors is an integer number (10914831044).

Almost surely, 2^255943305450 is an apocalyptic number.

255943305450 is an abundant number, since it is smaller than the sum of its proper divisors (529924529718).

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

255943305450 is a wasteful number, since it uses less digits than its factorization.

255943305450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81251868 (or 81251860 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 255943305450 in words is "two hundred fifty-five billion, nine hundred forty-three million, three hundred five thousand, four hundred fifty".