55240055 has 16 divisors (see below), whose sum is σ = 75587904. Its totient is φ = 38392320.

The previous prime is 55240037. The next prime is 55240057. The reversal of 55240055 is 55004255.

It is not a de Polignac number, because 55240055 - 2⁶ = 55239991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55240057) 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, 23891 + ... + 26100.

It is an arithmetic number, because the mean of its divisors is an integer number (4724244).

Almost surely, 2^55240055 is an apocalyptic number.

55240055 is a deficient number, since it is larger than the sum of its proper divisors (20347849).

55240055 is a wasteful number, since it uses less digits than its factorization.

55240055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50026.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 55240055 is about 7432.3653704591. The cubic root of 55240055 is about 380.8477265486.

The spelling of 55240055 in words is "fifty-five million, two hundred forty thousand, fifty-five".