545242545 has 24 divisors (see below), whose sum is σ = 970632936. Its totient is φ = 282935808.

The previous prime is 545242499. The next prime is 545242549.

545242545 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 341067024 + 204175521 = 18468^2 + 14289^2 .

It is not a de Polignac number, because 545242545 - 2¹⁹ = 544718257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545242549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162072 + ... + 165401.

It is an arithmetic number, because the mean of its divisors is an integer number (40443039).

Almost surely, 2^545242545 is an apocalyptic number.

It is an amenable number.

545242545 is a deficient number, since it is larger than the sum of its proper divisors (425390391).

545242545 is a wasteful number, since it uses less digits than its factorization.

545242545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327521 (or 327518 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 545242545 is about 23350.4292251770. The cubic root of 545242545 is about 816.9520723038.

The spelling of 545242545 in words is "five hundred forty-five million, two hundred forty-two thousand, five hundred forty-five".