255534722541 has 20 divisors (see below), whose sum is σ = 436256811232. Its totient is φ = 146019841128.

The previous prime is 255534722503. The next prime is 255534722543. The reversal of 255534722541 is 145227435552.

It is a happy number.

255534722541 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 34 + 72 + 2 + 541 = 666.

It is not a de Polignac number, because 255534722541 - 2¹⁰ = 255534721517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255534722543) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 225338695 + ... + 225339828.

Almost surely, 2^255534722541 is an apocalyptic number.

255534722541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255534722541 is a deficient number, since it is larger than the sum of its proper divisors (180722088691).

255534722541 is an equidigital number, since it uses as much as digits as its factorization.

255534722541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450678542 (or 450678533 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 45.

The spelling of 255534722541 in words is "two hundred fifty-five billion, five hundred thirty-four million, seven hundred twenty-two thousand, five hundred forty-one".