20032545 has 32 divisors (see below), whose sum is σ = 36554112. Its totient is φ = 9280512.

The previous prime is 20032543. The next prime is 20032547. The reversal of 20032545 is 54523002.

It is an interprime number because it is at equal distance from previous prime (20032543) and next prime (20032547).

It is not a de Polignac number, because 20032545 - 2¹ = 20032543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20032543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (1142316).

Almost surely, 2^20032545 is an apocalyptic number.

It is an amenable number.

20032545 is a deficient number, since it is larger than the sum of its proper divisors (16521567).

20032545 is a wasteful number, since it uses less digits than its factorization.

20032545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20032545 is about 4475.7731175742. The cubic root of 20032545 is about 271.5889164047.

Adding to 20032545 its reverse (54523002), we get a palindrome (74555547).

The spelling of 20032545 in words is "twenty million, thirty-two thousand, five hundred forty-five".