54135980 has 12 divisors (see below), whose sum is σ = 113685600. Its totient is φ = 21654384.

The previous prime is 54135979. The next prime is 54135989. The reversal of 54135980 is 8953145.

It is a self number, because there is not a number n which added to its sum of digits gives 54135980.

It is not an unprimeable number, because it can be changed into a prime (54135989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353380 + ... + 1353419.

It is an arithmetic number, because the mean of its divisors is an integer number (9473800).

Almost surely, 2^54135980 is an apocalyptic number.

It is an amenable number.

54135980 is an abundant number, since it is smaller than the sum of its proper divisors (59549620).

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

54135980 is a wasteful number, since it uses less digits than its factorization.

54135980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706808 (or 2706806 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 54135980 is about 7357.7156781164. The cubic root of 54135980 is about 378.2933158180.

The spelling of 54135980 in words is "fifty-four million, one hundred thirty-five thousand, nine hundred eighty".