55548042881 has 4 divisors (see below), whose sum is σ = 57339915264. Its totient is φ = 53756170500.

The previous prime is 55548042863. The next prime is 55548042899. The reversal of 55548042881 is 18824084555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55548042863) and next prime (55548042899).

It is a cyclic number.

It is not a de Polignac number, because 55548042881 - 2⁶ = 55548042817 is a prime.

It is a super-2 number, since 2×55548042881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55548042811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895936145 + ... + 895936206.

It is an arithmetic number, because the mean of its divisors is an integer number (14334978816).

Almost surely, 2^55548042881 is an apocalyptic number.

It is an amenable number.

55548042881 is a deficient number, since it is larger than the sum of its proper divisors (1791872383).

55548042881 is a wasteful number, since it uses less digits than its factorization.

55548042881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791872382.

The product of its (nonzero) digits is 2048000, while the sum is 50.

The spelling of 55548042881 in words is "fifty-five billion, five hundred forty-eight million, forty-two thousand, eight hundred eighty-one".