55051022021242 has 8 divisors (see below), whose sum is σ = 88928574034356. Its totient is φ = 25408164009792.

The previous prime is 55051022021239. The next prime is 55051022021287. The reversal of 55051022021242 is 24212022015055.

It can be written as a sum of positive squares in 2 ways, for example, as 54497186892841 + 553835128401 = 7382221^2 + 744201^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058673500383 + ... + 1058673500434.

Almost surely, 2^{55051022021242} is an apocalyptic number.

55051022021242 is a deficient number, since it is larger than the sum of its proper divisors (33877552013114).

55051022021242 is a wasteful number, since it uses less digits than its factorization.

55051022021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117347000832.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 55051022021242 its reverse (24212022015055), we get a palindrome (79263044036297).

The spelling of 55051022021242 in words is "fifty-five trillion, fifty-one billion, twenty-two million, twenty-one thousand, two hundred forty-two".