54455 has 4 divisors (see below), whose sum is σ = 65352. Its totient is φ = 43560.

The previous prime is 54449. The next prime is 54469. The reversal of 54455 is 55445.

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

It is not a de Polignac number, because 54455 - 2¹² = 50359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54455.

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, 5441 + ... + 5450.

It is an arithmetic number, because the mean of its divisors is an integer number (16338).

2⁵⁴⁴⁵⁵ is an apocalyptic number.

54455 is a deficient number, since it is larger than the sum of its proper divisors (10897).

54455 is a wasteful number, since it uses less digits than its factorization.

54455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10896.

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

The square root of 54455 is about 233.3559512847. The cubic root of 54455 is about 37.9034947337.

Subtracting 54455 from its reverse (55445), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 5445 and 5, that multiplied together give a square (27225 = 165²).

The spelling of 54455 in words is "fifty-four thousand, four hundred fifty-five".