255540155450 has 48 divisors (see below), whose sum is σ = 503569198080. Its totient is φ = 96144971520.

The previous prime is 255540155411. The next prime is 255540155477. The reversal of 255540155450 is 54551045552.

It is a junction number, because it is equal to n+sod(n) for n = 255540155398 and 255540155407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1323161 + ... + 1503939.

It is an arithmetic number, because the mean of its divisors is an integer number (10491024960).

Almost surely, 2^255540155450 is an apocalyptic number.

255540155450 is a deficient number, since it is larger than the sum of its proper divisors (248029042630).

255540155450 is a wasteful number, since it uses less digits than its factorization.

255540155450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182471 (or 182466 counting only the distinct ones).

The product of its (nonzero) digits is 500000, while the sum is 41.

The spelling of 255540155450 in words is "two hundred fifty-five billion, five hundred forty million, one hundred fifty-five thousand, four hundred fifty".