3545202505 has 16 divisors (see below), whose sum is σ = 4598055504. Its totient is φ = 2608531200.

The previous prime is 3545202373. The next prime is 3545202509. The reversal of 3545202505 is 5052025453.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 799023289 + 2746179216 = 28267^2 + 52404^2 .

It is not a de Polignac number, because 3545202505 - 2²¹ = 3543105353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3545202509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80446 + ... + 116455.

It is an arithmetic number, because the mean of its divisors is an integer number (287378469).

Almost surely, 2^3545202505 is an apocalyptic number.

It is an amenable number.

3545202505 is a deficient number, since it is larger than the sum of its proper divisors (1052852999).

3545202505 is a wasteful number, since it uses less digits than its factorization.

3545202505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197196.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 3545202505 is about 59541.6031443561. The cubic root of 3545202505 is about 1524.8028059993.

Adding to 3545202505 its reverse (5052025453), we get a palindrome (8597227958).

The spelling of 3545202505 in words is "three billion, five hundred forty-five million, two hundred two thousand, five hundred five".