55142304402 has 8 divisors (see below), whose sum is σ = 110284608816. Its totient is φ = 18380768132.

The previous prime is 55142304397. The next prime is 55142304419. The reversal of 55142304402 is 20440324155.

It is a sphenic number, since it is the product of 3 distinct primes.

55142304402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55142304402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4595192028 + ... + 4595192039.

It is an arithmetic number, because the mean of its divisors is an integer number (13785576102).

Almost surely, 2^55142304402 is an apocalyptic number.

55142304402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55142304402 is a wasteful number, since it uses less digits than its factorization.

55142304402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9190384072.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 55142304402 its reverse (20440324155), we get a palindrome (75582628557).

The spelling of 55142304402 in words is "fifty-five billion, one hundred forty-two million, three hundred four thousand, four hundred two".