2045500545 has 16 divisors (see below), whose sum is σ = 3570328512. Its totient is φ = 991757760.

The previous prime is 2045500531. The next prime is 2045500693. The reversal of 2045500545 is 5450055402.

It is not a de Polignac number, because 2045500545 - 2¹⁶ = 2045435009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6198322 + ... + 6198651.

It is an arithmetic number, because the mean of its divisors is an integer number (223145532).

Almost surely, 2^2045500545 is an apocalyptic number.

It is an amenable number.

2045500545 is a deficient number, since it is larger than the sum of its proper divisors (1524827967).

2045500545 is a wasteful number, since it uses less digits than its factorization.

2045500545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12396992.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 2045500545 is about 45227.2102279148. The cubic root of 2045500545 is about 1269.4040117991.

Adding to 2045500545 its reverse (5450055402), we get a palindrome (7495555947).

The spelling of 2045500545 in words is "two billion, forty-five million, five hundred thousand, five hundred forty-five".