54115155440 has 60 divisors (see below), whose sum is σ = 128961629112. Its totient is φ = 21118056960.

The previous prime is 54115155439. The next prime is 54115155443. The reversal of 54115155440 is 4455151145.

It is a super-4 number, since 4×54115155440⁴ (a number of 44 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54115155440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54115155443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66722 + ... + 335681.

Almost surely, 2^54115155440 is an apocalyptic number.

It is an amenable number.

54115155440 is an abundant number, since it is smaller than the sum of its proper divisors (74846473672).

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

54115155440 is a wasteful number, since it uses less digits than its factorization.

54115155440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402498 (or 402451 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 54115155440 in words is "fifty-four billion, one hundred fifteen million, one hundred fifty-five thousand, four hundred forty".