55577204139248 has 120 divisors (see below), whose sum is σ = 120972097290240. Its totient is φ = 24710435164800.

The previous prime is 55577204139221. The next prime is 55577204139257. The reversal of 55577204139248 is 84293140277555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15865073 + ... + 19048751.

It is an arithmetic number, because the mean of its divisors is an integer number (1008100810752).

Almost surely, 2^{55577204139248} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55577204139248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60486048645120).

55577204139248 is an abundant number, since it is smaller than the sum of its proper divisors (65394893150992).

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

55577204139248 is a wasteful number, since it uses less digits than its factorization.

55577204139248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183907 (or 3183890 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 62.

The spelling of 55577204139248 in words is "fifty-five trillion, five hundred seventy-seven billion, two hundred four million, one hundred thirty-nine thousand, two hundred forty-eight".