55140415320 has 64 divisors (see below), whose sum is σ = 169268267520. Its totient is φ = 14362153344.

The previous prime is 55140415307. The next prime is 55140415397. The reversal of 55140415320 is 2351404155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5337904 + ... + 5348223.

It is an arithmetic number, because the mean of its divisors is an integer number (2644816680).

Almost surely, 2^55140415320 is an apocalyptic number.

It is an amenable number.

55140415320 is an abundant number, since it is smaller than the sum of its proper divisors (114127852200).

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

55140415320 is a wasteful number, since it uses less digits than its factorization.

55140415320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10686184 (or 10686180 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 55140415320 its reverse (2351404155), we get a palindrome (57491819475).

The spelling of 55140415320 in words is "fifty-five billion, one hundred forty million, four hundred fifteen thousand, three hundred twenty".