55122001442 has 8 divisors (see below), whose sum is σ = 82811994732. Its totient is φ = 27518003200.

The previous prime is 55122001421. The next prime is 55122001463. The reversal of 55122001442 is 24410022155.

It is an interprime number because it is at equal distance from previous prime (55122001421) and next prime (55122001463).

It can be written as a sum of positive squares in 2 ways, for example, as 47528796121 + 7593205321 = 218011^2 + 87139^2 .

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

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, 21497159 + ... + 21499722.

Almost surely, 2^55122001442 is an apocalyptic number.

55122001442 is a deficient number, since it is larger than the sum of its proper divisors (27689993290).

55122001442 is a wasteful number, since it uses less digits than its factorization.

55122001442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42997524.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 55122001442 its reverse (24410022155), we get a palindrome (79532023597).

The spelling of 55122001442 in words is "fifty-five billion, one hundred twenty-two million, one thousand, four hundred forty-two".