55412312544 has 72 divisors (see below), whose sum is σ = 163415037240. Its totient is φ = 18470768256.

The previous prime is 55412312537. The next prime is 55412312573. The reversal of 55412312544 is 44521321455.

55412312544 is a `hidden beast` number, since 55 + 41 + 23 + 1 + 2 + 544 = 666.

55412312544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55412312499 and 55412312508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3555259 + ... + 3570810.

It is an arithmetic number, because the mean of its divisors is an integer number (2269653295).

Almost surely, 2^55412312544 is an apocalyptic number.

55412312544 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55412312544 is an abundant number, since it is smaller than the sum of its proper divisors (108002724696).

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

55412312544 is an equidigital number, since it uses as much as digits as its factorization.

55412312544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7126094 (or 7126074 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 55412312544 its reverse (44521321455), we get a palindrome (99933633999).

The spelling of 55412312544 in words is "fifty-five billion, four hundred twelve million, three hundred twelve thousand, five hundred forty-four".