545255125231 has 4 divisors (see below), whose sum is σ = 545281882992. Its totient is φ = 545228367472.

The previous prime is 545255125223. The next prime is 545255125241. The reversal of 545255125231 is 132521552545.

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

It is a cyclic number.

It is not a de Polignac number, because 545255125231 - 2³ = 545255125223 is a prime.

It is a super-2 number, since 2×545255125231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545255125241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13348291 + ... + 13389076.

It is an arithmetic number, because the mean of its divisors is an integer number (136320470748).

Almost surely, 2^545255125231 is an apocalyptic number.

545255125231 is a deficient number, since it is larger than the sum of its proper divisors (26757761).

545255125231 is a wasteful number, since it uses less digits than its factorization.

545255125231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26757760.

The product of its digits is 300000, while the sum is 40.

Adding to 545255125231 its reverse (132521552545), we get a palindrome (677776677776).

The spelling of 545255125231 in words is "five hundred forty-five billion, two hundred fifty-five million, one hundred twenty-five thousand, two hundred thirty-one".