545692489 has 4 divisors (see below), whose sum is σ = 558383056. Its totient is φ = 533001924.

The previous prime is 545692471. The next prime is 545692517. The reversal of 545692489 is 984296545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984296545 = 5 ⋅196859309.

It is a cyclic number.

It is not a de Polignac number, because 545692489 - 2²¹ = 543595337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545692289) 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, 6345219 + ... + 6345304.

It is an arithmetic number, because the mean of its divisors is an integer number (139595764).

Almost surely, 2^545692489 is an apocalyptic number.

It is an amenable number.

545692489 is a deficient number, since it is larger than the sum of its proper divisors (12690567).

545692489 is a wasteful number, since it uses less digits than its factorization.

545692489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690566.

The product of its digits is 3110400, while the sum is 52.

The square root of 545692489 is about 23360.0618363908. The cubic root of 545692489 is about 817.1767317213.

The spelling of 545692489 in words is "five hundred forty-five million, six hundred ninety-two thousand, four hundred eighty-nine".