4000532545 has 4 divisors (see below), whose sum is σ = 4800639060. Its totient is φ = 3200426032.

The previous prime is 4000532539. The next prime is 4000532567. The reversal of 4000532545 is 5452350004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1158789681 + 2841742864 = 34041^2 + 53308^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000532545 - 2²⁷ = 3866314817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400053250 + ... + 400053259.

It is an arithmetic number, because the mean of its divisors is an integer number (1200159765).

Almost surely, 2^4000532545 is an apocalyptic number.

It is an amenable number.

4000532545 is a deficient number, since it is larger than the sum of its proper divisors (800106515).

4000532545 is an equidigital number, since it uses as much as digits as its factorization.

4000532545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800106514.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 4000532545 is about 63249.7632011378. The cubic root of 4000532545 is about 1587.4714957165.

Adding to 4000532545 its reverse (5452350004), we get a palindrome (9452882549).

The spelling of 4000532545 in words is "four billion, five hundred thirty-two thousand, five hundred forty-five".