5400640055 has 4 divisors (see below), whose sum is σ = 6480768072. Its totient is φ = 4320512040.

The previous prime is 5400640027. The next prime is 5400640073. The reversal of 5400640055 is 5500460045.

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

It is not a de Polignac number, because 5400640055 - 2¹⁰ = 5400639031 is a prime.

It is a Duffinian number.

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, 540064001 + ... + 540064010.

It is an arithmetic number, because the mean of its divisors is an integer number (1620192018).

Almost surely, 2^5400640055 is an apocalyptic number.

5400640055 is a deficient number, since it is larger than the sum of its proper divisors (1080128017).

5400640055 is a wasteful number, since it uses less digits than its factorization.

5400640055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080128016.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 5400640055 is about 73489.0471771134. The cubic root of 5400640055 is about 1754.4799561957.

The spelling of 5400640055 in words is "five billion, four hundred million, six hundred forty thousand, fifty-five".