54891955 has 4 divisors (see below), whose sum is σ = 65870352. Its totient is φ = 43913560.

The previous prime is 54891953. The next prime is 54891959. The reversal of 54891955 is 55919845.

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

It is not a de Polignac number, because 54891955 - 2¹ = 54891953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54891953) 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, 5489191 + ... + 5489200.

It is an arithmetic number, because the mean of its divisors is an integer number (16467588).

Almost surely, 2^54891955 is an apocalyptic number.

54891955 is a deficient number, since it is larger than the sum of its proper divisors (10978397).

54891955 is a wasteful number, since it uses less digits than its factorization.

54891955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978396.

The product of its digits is 324000, while the sum is 46.

The square root of 54891955 is about 7408.9105136990. The cubic root of 54891955 is about 380.0460585908.

The spelling of 54891955 in words is "fifty-four million, eight hundred ninety-one thousand, nine hundred fifty-five".