55040054 has 8 divisors (see below), whose sum is σ = 82613520. Its totient is φ = 27502216.

The previous prime is 55039991. The next prime is 55040059. The reversal of 55040054 is 45004055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55040059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4634 + ... + 11469.

It is an arithmetic number, because the mean of its divisors is an integer number (10326690).

Almost surely, 2^55040054 is an apocalyptic number.

55040054 is a deficient number, since it is larger than the sum of its proper divisors (27573466).

55040054 is a wasteful number, since it uses less digits than its factorization.

55040054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17814.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 55040054 is about 7418.8984357518. The cubic root of 55040054 is about 380.3875409222.

It can be divided in two parts, 550 and 40054, that added together give a palindrome (40604).

The spelling of 55040054 in words is "fifty-five million, forty thousand, fifty-four".