66050403 has 16 divisors (see below), whose sum is σ = 93561600. Its totient is φ = 41329440.

The previous prime is 66050401. The next prime is 66050407. The reversal of 66050403 is 30405066.

It is not a de Polignac number, because 66050403 - 2¹ = 66050401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66050401) 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, 898 + ... + 11528.

It is an arithmetic number, because the mean of its divisors is an integer number (5847600).

Almost surely, 2^66050403 is an apocalyptic number.

66050403 is a deficient number, since it is larger than the sum of its proper divisors (27511197).

66050403 is a wasteful number, since it uses less digits than its factorization.

66050403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 66050403 is about 8127.1399028194. The cubic root of 66050403 is about 404.2268499365.

Adding to 66050403 its reverse (30405066), we get a palindrome (96455469).

The spelling of 66050403 in words is "sixty-six million, fifty thousand, four hundred three".