402155215253 has 16 divisors (see below), whose sum is σ = 439742853312. Its totient is φ = 364739760000.

The previous prime is 402155215247. The next prime is 402155215289. The reversal of 402155215253 is 352512551204.

It is a happy number.

It is not a de Polignac number, because 402155215253 - 2⁸ = 402155214997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402155215853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10101575 + ... + 10141307.

It is an arithmetic number, because the mean of its divisors is an integer number (27483928332).

Almost surely, 2^402155215253 is an apocalyptic number.

It is an amenable number.

402155215253 is a deficient number, since it is larger than the sum of its proper divisors (37587638059).

402155215253 is a wasteful number, since it uses less digits than its factorization.

402155215253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41876.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 402155215253 its reverse (352512551204), we get a palindrome (754667766457).

The spelling of 402155215253 in words is "four hundred two billion, one hundred fifty-five million, two hundred fifteen thousand, two hundred fifty-three".