255545620545 has 16 divisors (see below), whose sum is σ = 408879312192. Its totient is φ = 136288891200.

The previous prime is 255545620543. The next prime is 255545620549. The reversal of 255545620545 is 545026545552.

It is a happy number.

It is not a de Polignac number, because 255545620545 - 2¹ = 255545620543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255545620494 and 255545620503.

It is not an unprimeable number, because it can be changed into a prime (255545620543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642339 + ... + 1791191.

It is an arithmetic number, because the mean of its divisors is an integer number (25554957012).

Almost surely, 2^255545620545 is an apocalyptic number.

It is an amenable number.

255545620545 is a deficient number, since it is larger than the sum of its proper divisors (153333691647).

255545620545 is a wasteful number, since it uses less digits than its factorization.

255545620545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263312.

The product of its (nonzero) digits is 6000000, while the sum is 48.

The spelling of 255545620545 in words is "two hundred fifty-five billion, five hundred forty-five million, six hundred twenty thousand, five hundred forty-five".