4005000054 has 36 divisors (see below), whose sum is σ = 9538083828. Its totient is φ = 1213635720.

The previous prime is 4005000023. The next prime is 4005000059. The reversal of 4005000054 is 4500005004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005000059) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 917244 + ... + 921599.

It is an arithmetic number, because the mean of its divisors is an integer number (264946773).

Almost surely, 2^4005000054 is an apocalyptic number.

4005000054 is an abundant number, since it is smaller than the sum of its proper divisors (5533083774).

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

4005000054 is a wasteful number, since it uses less digits than its factorization.

4005000054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838873 (or 1838859 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4005000054 is about 63285.0697558279. The cubic root of 4005000054 is about 1588.0622008113.

Adding to 4005000054 its reverse (4500005004), we get a palindrome (8505005058).

The spelling of 4005000054 in words is "four billion, five million, fifty-four", and thus it is an aban number.