255512435400 has 72 divisors (see below), whose sum is σ = 858095934930. Its totient is φ = 68136648960.

The previous prime is 255512435359. The next prime is 255512435417. The reversal of 255512435400 is 4534215552.

255512435400 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 1 + 243 + 5 + 400 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 219411675396 + 36100760004 = 468414^2 + 190002^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 70973877 + ... + 70977476.

Almost surely, 2^255512435400 is an apocalyptic number.

255512435400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255512435400 is an abundant number, since it is smaller than the sum of its proper divisors (602583499530).

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

255512435400 is a wasteful number, since it uses less digits than its factorization.

255512435400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141951375 (or 141951363 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 255512435400 in words is "two hundred fifty-five billion, five hundred twelve million, four hundred thirty-five thousand, four hundred".