55550537952 has 216 divisors, whose sum is σ = 183682149336. Its totient is φ = 14650481664.

The previous prime is 55550537891. The next prime is 55550537957. The reversal of 55550537952 is 25973505555.

It is a happy number.

55550537952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55550537895 and 55550537904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550537957) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 760038 + ... + 829914.

It is an arithmetic number, because the mean of its divisors is an integer number (850380321).

Almost surely, 2^55550537952 is an apocalyptic number.

55550537952 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55550537952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91841074668).

55550537952 is an abundant number, since it is smaller than the sum of its proper divisors (128131611384).

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

55550537952 is a wasteful number, since it uses less digits than its factorization.

55550537952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69930 (or 69902 counting only the distinct ones).

The product of its (nonzero) digits is 5906250, while the sum is 51.

The spelling of 55550537952 in words is "fifty-five billion, five hundred fifty million, five hundred thirty-seven thousand, nine hundred fifty-two".