254511025134545 has 4 divisors (see below), whose sum is σ = 305413230161460. Its totient is φ = 203608820107632.

The previous prime is 254511025134463. The next prime is 254511025134599. The reversal of 254511025134545 is 545431520115452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57128307038929 + 197382718095616 = 7558327^2 + 14049296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254511025134545 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254511025134545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25451102513450 + ... + 25451102513459.

It is an arithmetic number, because the mean of its divisors is an integer number (76353307540365).

Almost surely, 2^{254511025134545} is an apocalyptic number.

It is an amenable number.

254511025134545 is a deficient number, since it is larger than the sum of its proper divisors (50902205026915).

254511025134545 is an equidigital number, since it uses as much as digits as its factorization.

254511025134545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50902205026914.

The product of its (nonzero) digits is 2400000, while the sum is 47.

Adding to 254511025134545 its reverse (545431520115452), we get a palindrome (799942545249997).

The spelling of 254511025134545 in words is "two hundred fifty-four trillion, five hundred eleven billion, twenty-five million, one hundred thirty-four thousand, five hundred forty-five".