4507533521145 has 24 divisors (see below), whose sum is σ = 7979293385856. Its totient is φ = 2352868560288.

The previous prime is 4507533521059. The next prime is 4507533521149. The reversal of 4507533521145 is 5411253357054.

4507533521145 is a `hidden beast` number, since 4 + 50 + 7 + 5 + 33 + 521 + 1 + 45 = 666.

It is not a de Polignac number, because 4507533521145 - 2¹³ = 4507533512953 is a prime.

It is a super-2 number, since 2×4507533521145² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4507533521145.

It is not an unprimeable number, because it can be changed into a prime (4507533521149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1065608647 + ... + 1065612876.

It is an arithmetic number, because the mean of its divisors is an integer number (332470557744).

Almost surely, 2^{4507533521145} is an apocalyptic number.

4507533521145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4507533521145 is a deficient number, since it is larger than the sum of its proper divisors (3471759864711).

4507533521145 is a wasteful number, since it uses less digits than its factorization.

4507533521145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131221581 (or 2131221578 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

Adding to 4507533521145 its reverse (5411253357054), we get a palindrome (9918786878199).

The spelling of 4507533521145 in words is "four trillion, five hundred seven billion, five hundred thirty-three million, five hundred twenty-one thousand, one hundred forty-five".