545039452 has 24 divisors (see below), whose sum is σ = 993414240. Its totient is φ = 261414720.

The previous prime is 545039449. The next prime is 545039459. The reversal of 545039452 is 254930545.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545039459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15427 + ... + 36442.

It is an arithmetic number, because the mean of its divisors is an integer number (41392260).

Almost surely, 2^545039452 is an apocalyptic number.

It is an amenable number.

545039452 is a deficient number, since it is larger than the sum of its proper divisors (448374788).

545039452 is a wasteful number, since it uses less digits than its factorization.

545039452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51981 (or 51979 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 545039452 is about 23346.0800135697. The cubic root of 545039452 is about 816.8506264101.

Adding to 545039452 its reverse (254930545), we get a palindrome (799969997).

The spelling of 545039452 in words is "five hundred forty-five million, thirty-nine thousand, four hundred fifty-two".