55231142202 has 48 divisors (see below), whose sum is σ = 121533310080. Its totient is φ = 18123690816.

The previous prime is 55231142179. The next prime is 55231142203. The reversal of 55231142202 is 20224113255.

55231142202 is a `hidden beast` number, since 5 + 5 + 231 + 1 + 422 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (55231142203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1926223 + ... + 1954685.

It is an arithmetic number, because the mean of its divisors is an integer number (2531943960).

Almost surely, 2^55231142202 is an apocalyptic number.

55231142202 is an abundant number, since it is smaller than the sum of its proper divisors (66302167878).

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

55231142202 is a wasteful number, since it uses less digits than its factorization.

55231142202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30147 (or 30144 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 55231142202 its reverse (20224113255), we get a palindrome (75455255457).

The spelling of 55231142202 in words is "fifty-five billion, two hundred thirty-one million, one hundred forty-two thousand, two hundred two".