55555028412 has 48 divisors (see below), whose sum is σ = 139640756640. Its totient is φ = 17088841728.

The previous prime is 55555028401. The next prime is 55555028453. The reversal of 55555028412 is 21482055555.

It is a super-2 number, since 2×55555028412² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 500068 + ... + 600980.

It is an arithmetic number, because the mean of its divisors is an integer number (2909182430).

Almost surely, 2^55555028412 is an apocalyptic number.

55555028412 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55555028412 is an abundant number, since it is smaller than the sum of its proper divisors (84085728228).

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

55555028412 is a wasteful number, since it uses less digits than its factorization.

55555028412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104462 (or 104460 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 42.

The spelling of 55555028412 in words is "fifty-five billion, five hundred fifty-five million, twenty-eight thousand, four hundred twelve".