55140542312 has 16 divisors (see below), whose sum is σ = 103499820900. Its totient is φ = 27540590080.

The previous prime is 55140542293. The next prime is 55140542329. The reversal of 55140542312 is 21324504155.

It can be written as a sum of positive squares in 2 ways, for example, as 49535624356 + 5604917956 = 222566^2 + 74866^2 .

It is a super-2 number, since 2×55140542312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3702239 + ... + 3717102.

Almost surely, 2^55140542312 is an apocalyptic number.

It is an amenable number.

55140542312 is a deficient number, since it is larger than the sum of its proper divisors (48359278588).

55140542312 is a wasteful number, since it uses less digits than its factorization.

55140542312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420276 (or 7420272 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 55140542312 in words is "fifty-five billion, one hundred forty million, five hundred forty-two thousand, three hundred twelve".