55143235332 has 36 divisors (see below), whose sum is σ = 139431067776. Its totient is φ = 18375642480.

The previous prime is 55143235331. The next prime is 55143235363. The reversal of 55143235332 is 23353234155.

55143235332 is a `hidden beast` number, since 5 + 51 + 43 + 235 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55143235331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102144 + ... + 347447.

It is an arithmetic number, because the mean of its divisors is an integer number (3873085216).

Almost surely, 2^55143235332 is an apocalyptic number.

It is an amenable number.

55143235332 is an abundant number, since it is smaller than the sum of its proper divisors (84287832444).

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

55143235332 is a wasteful number, since it uses less digits than its factorization.

55143235332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453008 (or 453003 counting only the distinct ones).

The product of its digits is 162000, while the sum is 36.

Adding to 55143235332 its reverse (23353234155), we get a palindrome (78496469487).

The spelling of 55143235332 in words is "fifty-five billion, one hundred forty-three million, two hundred thirty-five thousand, three hundred thirty-two".