54478550 has 24 divisors (see below), whose sum is σ = 115806576. Its totient is φ = 18678240.

The previous prime is 54478547. The next prime is 54478553. The reversal of 54478550 is 5587445.

It is an interprime number because it is at equal distance from previous prime (54478547) and next prime (54478553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54478553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77477 + ... + 78176.

It is an arithmetic number, because the mean of its divisors is an integer number (4825274).

Almost surely, 2^54478550 is an apocalyptic number.

54478550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54478550 is an abundant number, since it is smaller than the sum of its proper divisors (61328026).

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

54478550 is a wasteful number, since it uses less digits than its factorization.

54478550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155672 (or 155667 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 54478550 is about 7380.9586098284. The cubic root of 54478550 is about 379.0895795199.

The spelling of 54478550 in words is "fifty-four million, four hundred seventy-eight thousand, five hundred fifty".