55002134550 has 96 divisors (see below), whose sum is σ = 148949752320. Its totient is φ = 13320950400.

The previous prime is 55002134531. The next prime is 55002134563. The reversal of 55002134550 is 5543120055.

It is a happy number.

55002134550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1748259 + ... + 1779441.

It is an arithmetic number, because the mean of its divisors is an integer number (1551559920).

Almost surely, 2^55002134550 is an apocalyptic number.

55002134550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55002134550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74474876160).

55002134550 is an abundant number, since it is smaller than the sum of its proper divisors (93947617770).

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

55002134550 is a wasteful number, since it uses less digits than its factorization.

55002134550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32278 (or 32273 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 55002134550 in words is "fifty-five billion, two million, one hundred thirty-four thousand, five hundred fifty".