6401210253 has 24 divisors (see below), whose sum is σ = 8700778944. Its totient is φ = 4186103040.

The previous prime is 6401210227. The next prime is 6401210267. The reversal of 6401210253 is 3520121046.

It is not a de Polignac number, because 6401210253 - 2¹³ = 6401202061 is a prime.

It is a super-2 number, since 2×6401210253² = 81950985406224648018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401210273) 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, 6619176 + ... + 6620142.

It is an arithmetic number, because the mean of its divisors is an integer number (362532456).

Almost surely, 2^6401210253 is an apocalyptic number.

It is an amenable number.

6401210253 is a deficient number, since it is larger than the sum of its proper divisors (2299568691).

6401210253 is an equidigital number, since it uses as much as digits as its factorization.

6401210253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 6401210253 is about 80007.5637236880. The cubic root of 6401210253 is about 1856.7525572525.

Adding to 6401210253 its reverse (3520121046), we get a palindrome (9921331299).

The spelling of 6401210253 in words is "six billion, four hundred one million, two hundred ten thousand, two hundred fifty-three".