254131521305545 has 16 divisors (see below), whose sum is σ = 328421050477632. Its totient is φ = 187663536688320.

The previous prime is 254131521305531. The next prime is 254131521305561. The reversal of 254131521305545 is 545503125131452.

It is not a de Polignac number, because 254131521305545 - 2¹¹ = 254131521303497 is a prime.

It is a super-2 number, since 2×254131521305545² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254131521305495 and 254131521305504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24981291 + ... + 33650080.

It is an arithmetic number, because the mean of its divisors is an integer number (20526315654852).

Almost surely, 2^{254131521305545} is an apocalyptic number.

It is an amenable number.

254131521305545 is a deficient number, since it is larger than the sum of its proper divisors (74289529172087).

254131521305545 is a wasteful number, since it uses less digits than its factorization.

254131521305545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58698072.

The product of its (nonzero) digits is 1800000, while the sum is 46.

Adding to 254131521305545 its reverse (545503125131452), we get a palindrome (799634646436997).

The spelling of 254131521305545 in words is "two hundred fifty-four trillion, one hundred thirty-one billion, five hundred twenty-one million, three hundred five thousand, five hundred forty-five".