55571543348874 has 128 divisors (see below), whose sum is σ = 133320136384512. Its totient is φ = 15111353986560.

The previous prime is 55571543348819. The next prime is 55571543348887. The reversal of 55571543348874 is 47884334517555.

It is a super-4 number, since 4×55571543348874⁴ (a number of 56 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55571543348799 and 55571543348808.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23728452 + ... + 25965024.

It is an arithmetic number, because the mean of its divisors is an integer number (1041563565504).

Almost surely, 2^{55571543348874} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55571543348874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66660068192256).

55571543348874 is an abundant number, since it is smaller than the sum of its proper divisors (77748593035638).

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

55571543348874 is a wasteful number, since it uses less digits than its factorization.

55571543348874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236980.

The product of its digits is 1128960000, while the sum is 69.

The spelling of 55571543348874 in words is "fifty-five trillion, five hundred seventy-one billion, five hundred forty-three million, three hundred forty-eight thousand, eight hundred seventy-four".