55212151302 has 144 divisors (see below), whose sum is σ = 160738158672. Its totient is φ = 13497200640.

The previous prime is 55212151301. The next prime is 55212151307. The reversal of 55212151302 is 20315121255.

55212151302 is a `hidden beast` number, since 5 + 521 + 2 + 1 + 5 + 130 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55212151301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2443 + ... + 332310.

It is an arithmetic number, because the mean of its divisors is an integer number (1116237213).

Almost surely, 2^55212151302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55212151302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80369079336).

55212151302 is an abundant number, since it is smaller than the sum of its proper divisors (105526007370).

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

55212151302 is a wasteful number, since it uses less digits than its factorization.

55212151302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334803 (or 334793 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 55212151302 its reverse (20315121255), we get a palindrome (75527272557).

The spelling of 55212151302 in words is "fifty-five billion, two hundred twelve million, one hundred fifty-one thousand, three hundred two".