545959645501 has 4 divisors (see below), whose sum is σ = 546022836604. Its totient is φ = 545896454400.

The previous prime is 545959645487. The next prime is 545959645519. The reversal of 545959645501 is 105546959545.

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 96302226276 + 449657419225 = 310326^2 + 670565^2 .

It is a cyclic number.

It is not a de Polignac number, because 545959645501 - 2³³ = 537369710909 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 (545959645001) 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, 31582590 + ... + 31599871.

It is an arithmetic number, because the mean of its divisors is an integer number (136505709151).

Almost surely, 2^545959645501 is an apocalyptic number.

It is an amenable number.

545959645501 is a deficient number, since it is larger than the sum of its proper divisors (63191103).

545959645501 is an equidigital number, since it uses as much as digits as its factorization.

545959645501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63191102.

The product of its (nonzero) digits is 24300000, while the sum is 58.

The spelling of 545959645501 in words is "five hundred forty-five billion, nine hundred fifty-nine million, six hundred forty-five thousand, five hundred one".