253600055 has 4 divisors (see below), whose sum is σ = 304320072. Its totient is φ = 202880040.

The previous prime is 253600037. The next prime is 253600063. The reversal of 253600055 is 550006352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 253600055 - 2²⁰ = 252551479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253599997 and 253600033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25360001 + ... + 25360010.

It is an arithmetic number, because the mean of its divisors is an integer number (76080018).

Almost surely, 2^253600055 is an apocalyptic number.

253600055 is a deficient number, since it is larger than the sum of its proper divisors (50720017).

253600055 is an equidigital number, since it uses as much as digits as its factorization.

253600055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50720016.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 253600055 is about 15924.8251167791. The cubic root of 253600055 is about 632.9699819468.

The spelling of 253600055 in words is "two hundred fifty-three million, six hundred thousand, fifty-five".