4255505538 has 32 divisors (see below), whose sum is σ = 8727651072. Its totient is φ = 1382467200.

The previous prime is 4255505509. The next prime is 4255505539. The reversal of 4255505538 is 8355055524.

It is a self number, because there is not a number n which added to its sum of digits gives 4255505538.

It is not an unprimeable number, because it can be changed into a prime (4255505539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242695 + ... + 259637.

It is an arithmetic number, because the mean of its divisors is an integer number (272739096).

Almost surely, 2^4255505538 is an apocalyptic number.

4255505538 is an abundant number, since it is smaller than the sum of its proper divisors (4472145534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4255505538 is a wasteful number, since it uses less digits than its factorization.

4255505538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18010.

The product of its (nonzero) digits is 600000, while the sum is 42.

The square root of 4255505538 is about 65234.2359348218. The cubic root of 4255505538 is about 1620.5050421992.

The spelling of 4255505538 in words is "four billion, two hundred fifty-five million, five hundred five thousand, five hundred thirty-eight".