54511380 has 480 divisors, whose sum is σ = 234178560. Its totient is φ = 10264320.

The previous prime is 54511351. The next prime is 54511393. The reversal of 54511380 is 8311545.

54511380 = T₂₄ + T₂₅ + ... + T₆₈₈.

54511380 is a `hidden beast` number, since 545 + 113 + 8 + 0 = 666.

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 159 ways as a sum of consecutive naturals, for example, 2370049 + ... + 2370071.

It is an arithmetic number, because the mean of its divisors is an integer number (487872).

Almost surely, 2^54511380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54511380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117089280).

54511380 is an abundant number, since it is smaller than the sum of its proper divisors (179667180).

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

54511380 is a wasteful number, since it uses less digits than its factorization.

54511380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 54511380 is about 7383.1822407415. The cubic root of 54511380 is about 379.1657135319.

The spelling of 54511380 in words is "fifty-four million, five hundred eleven thousand, three hundred eighty".