55212884541577 has 6 divisors (see below), whose sum is σ = 64227233038218. Its totient is φ = 47325329607024.

The previous prime is 55212884541523. The next prime is 55212884541587. The reversal of 55212884541577 is 77514548821255.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54129878004601 + 1083006536976 = 7357301^2 + 1040676^2 .

It is not a de Polignac number, because 55212884541577 - 2²³ = 55212876152969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55212884541587) 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 5 ways as a sum of consecutive naturals, for example, 563396780988 + ... + 563396781085.

It is an arithmetic number, because the mean of its divisors is an integer number (10704538839703).

Almost surely, 2^{55212884541577} is an apocalyptic number.

It is an amenable number.

55212884541577 is a deficient number, since it is larger than the sum of its proper divisors (9014348496641).

55212884541577 is a wasteful number, since it uses less digits than its factorization.

55212884541577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126793562087 (or 1126793562080 counting only the distinct ones).

The product of its digits is 125440000, while the sum is 64.

The spelling of 55212884541577 in words is "fifty-five trillion, two hundred twelve billion, eight hundred eighty-four million, five hundred forty-one thousand, five hundred seventy-seven".