54071550 has 180 divisors, whose sum is σ = 164743920. Its totient is φ = 13141440.

The previous prime is 54071539. The next prime is 54071561. The reversal of 54071550 is 5517045.

54071550 is a `hidden beast` number, since 5 + 40 + 71 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (54071539) and next prime (54071561).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 684411 + ... + 684489.

It is an arithmetic number, because the mean of its divisors is an integer number (915244).

Almost surely, 2^54071550 is an apocalyptic number.

54071550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 54071550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82371960).

54071550 is an abundant number, since it is smaller than the sum of its proper divisors (110672370).

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

54071550 is a wasteful number, since it uses less digits than its factorization.

54071550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 54071550 is about 7353.3359776363. The cubic root of 54071550 is about 378.1431808302.

Adding to 54071550 its reverse (5517045), we get a palindrome (59588595).

The spelling of 54071550 in words is "fifty-four million, seventy-one thousand, five hundred fifty".