545501242 has 24 divisors (see below), whose sum is σ = 966591360. Its totient is φ = 228880080.

The previous prime is 545501221. The next prime is 545501251. The reversal of 545501242 is 242105545.

It is a self number, because there is not a number n which added to its sum of digits gives 545501242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69642 + ... + 77077.

It is an arithmetic number, because the mean of its divisors is an integer number (40274640).

Almost surely, 2^545501242 is an apocalyptic number.

545501242 is a deficient number, since it is larger than the sum of its proper divisors (421090118).

545501242 is a wasteful number, since it uses less digits than its factorization.

545501242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146758 (or 146745 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 545501242 is about 23355.9680167618. The cubic root of 545501242 is about 817.0812561788.

Adding to 545501242 its reverse (242105545), we get a palindrome (787606787).

The spelling of 545501242 in words is "five hundred forty-five million, five hundred one thousand, two hundred forty-two".