253453205405 has 16 divisors (see below), whose sum is σ = 305880001920. Its totient is φ = 201605403072.

The previous prime is 253453205351. The next prime is 253453205461. The reversal of 253453205405 is 504502354352.

It is not a de Polignac number, because 253453205405 - 2²⁶ = 253386096541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12409712 + ... + 12430118.

It is an arithmetic number, because the mean of its divisors is an integer number (19117500120).

Almost surely, 2^253453205405 is an apocalyptic number.

It is an amenable number.

253453205405 is a deficient number, since it is larger than the sum of its proper divisors (52426796515).

253453205405 is a wasteful number, since it uses less digits than its factorization.

253453205405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34468.

The product of its (nonzero) digits is 360000, while the sum is 38.

Adding to 253453205405 its reverse (504502354352), we get a palindrome (757955559757).

The spelling of 253453205405 in words is "two hundred fifty-three billion, four hundred fifty-three million, two hundred five thousand, four hundred five".