54398556 has 36 divisors (see below), whose sum is σ = 137744152. Its totient is φ = 18101664.

The previous prime is 54398549. The next prime is 54398579. The reversal of 54398556 is 65589345.

54398556 is a `hidden beast` number, since 5 + 4 + 3 + 98 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30711 + ... + 32433.

Almost surely, 2^54398556 is an apocalyptic number.

It is an amenable number.

54398556 is an abundant number, since it is smaller than the sum of its proper divisors (83345596).

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

54398556 is a wasteful number, since it uses less digits than its factorization.

54398556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610 (or 2605 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 54398556 is about 7375.5376753156. The cubic root of 54398556 is about 378.9039422581.

It can be divided in two parts, 543 and 98556, that added together give a palindrome (99099).

The spelling of 54398556 in words is "fifty-four million, three hundred ninety-eight thousand, five hundred fifty-six".