545787601 has 4 divisors (see below), whose sum is σ = 577892772. Its totient is φ = 513682432.

The previous prime is 545787553. The next prime is 545787607. The reversal of 545787601 is 106787545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106787545 = 5 ⋅21357509.

It can be written as a sum of positive squares in 2 ways, for example, as 410670225 + 135117376 = 20265^2 + 11624^2 .

It is a cyclic number.

It is not a de Polignac number, because 545787601 - 2¹¹ = 545785553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545787607) 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, 16052560 + ... + 16052593.

It is an arithmetic number, because the mean of its divisors is an integer number (144473193).

Almost surely, 2^545787601 is an apocalyptic number.

It is an amenable number.

545787601 is a deficient number, since it is larger than the sum of its proper divisors (32105171).

545787601 is a wasteful number, since it uses less digits than its factorization.

545787601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32105170.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 545787601 is about 23362.0975299736. The cubic root of 545787601 is about 817.2242058327.

The spelling of 545787601 in words is "five hundred forty-five million, seven hundred eighty-seven thousand, six hundred one".