54378558 has 48 divisors (see below), whose sum is σ = 127488816. Its totient is φ = 16652160.

The previous prime is 54378547. The next prime is 54378559. The reversal of 54378558 is 85587345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54378559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65341 + ... + 66167.

It is an arithmetic number, because the mean of its divisors is an integer number (2656017).

Almost surely, 2^54378558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54378558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63744408).

54378558 is an abundant number, since it is smaller than the sum of its proper divisors (73110258).

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

54378558 is a wasteful number, since it uses less digits than its factorization.

54378558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1126 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 54378558 is about 7374.1818529244. The cubic root of 54378558 is about 378.8575056716.

The spelling of 54378558 in words is "fifty-four million, three hundred seventy-eight thousand, five hundred fifty-eight".