545452001 has 4 divisors (see below), whose sum is σ = 545624772. Its totient is φ = 545279232.

The previous prime is 545451997. The next prime is 545452009. The reversal of 545452001 is 100254545.

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 318979600 + 226472401 = 17860^2 + 15049^2 .

It is a cyclic number.

It is not a de Polignac number, because 545452001 - 2² = 545451997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545452009) 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, 81560 + ... + 87993.

It is an arithmetic number, because the mean of its divisors is an integer number (136406193).

Almost surely, 2^545452001 is an apocalyptic number.

It is an amenable number.

545452001 is a deficient number, since it is larger than the sum of its proper divisors (172771).

545452001 is a wasteful number, since it uses less digits than its factorization.

545452001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172770.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 545452001 is about 23354.9138512648. The cubic root of 545452001 is about 817.0566701616.

The spelling of 545452001 in words is "five hundred forty-five million, four hundred fifty-two thousand, one".