55040154 has 16 divisors (see below), whose sum is σ = 118548192. Its totient is φ = 16935408.

The previous prime is 55040147. The next prime is 55040179. The reversal of 55040154 is 45104055.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352744 + ... + 352899.

It is an arithmetic number, because the mean of its divisors is an integer number (7409262).

Almost surely, 2^55040154 is an apocalyptic number.

55040154 is an abundant number, since it is smaller than the sum of its proper divisors (63508038).

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

55040154 is a wasteful number, since it uses less digits than its factorization.

55040154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705661.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55040154 is about 7418.9051752937. The cubic root of 55040154 is about 380.3877712922.

It can be divided in two parts, 550 and 40154, that added together give a palindrome (40704).

The spelling of 55040154 in words is "fifty-five million, forty thousand, one hundred fifty-four".