253604344605 has 16 divisors (see below), whose sum is σ = 409784448384. Its totient is φ = 133916484800.

The previous prime is 253604344559. The next prime is 253604344673. The reversal of 253604344605 is 506443406352.

It is a happy number.

It is not a de Polignac number, because 253604344605 - 2¹⁹ = 253603820317 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, 83696289 + ... + 83699318.

It is an arithmetic number, because the mean of its divisors is an integer number (25611528024).

Almost surely, 2^253604344605 is an apocalyptic number.

It is an amenable number.

253604344605 is a deficient number, since it is larger than the sum of its proper divisors (156180103779).

253604344605 is a wasteful number, since it uses less digits than its factorization.

253604344605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167395716.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 253604344605 in words is "two hundred fifty-three billion, six hundred four million, three hundred forty-four thousand, six hundred five".