6403501223 has 16 divisors (see below), whose sum is σ = 7573750080. Its totient is φ = 5297273856.

The previous prime is 6403501213. The next prime is 6403501253. The reversal of 6403501223 is 3221053046.

It is not a de Polignac number, because 6403501223 - 2¹⁴ = 6403484839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6403501192 and 6403501201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403501213) 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, 655511 + ... + 665207.

It is an arithmetic number, because the mean of its divisors is an integer number (473359380).

Almost surely, 2^6403501223 is an apocalyptic number.

6403501223 is a deficient number, since it is larger than the sum of its proper divisors (1170248857).

6403501223 is a wasteful number, since it uses less digits than its factorization.

6403501223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6403501223 is about 80021.8796517552. The cubic root of 6403501223 is about 1856.9740391739.

Adding to 6403501223 its reverse (3221053046), we get a palindrome (9624554269).

The spelling of 6403501223 in words is "six billion, four hundred three million, five hundred one thousand, two hundred twenty-three".