551242002442 has 8 divisors (see below), whose sum is σ = 827991059076. Its totient is φ = 275244982752.

The previous prime is 551242002407. The next prime is 551242002457. The reversal of 551242002442 is 244200242155.

It can be written as a sum of positive squares in 2 ways, for example, as 474168582801 + 77073419641 = 688599^2 + 277621^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188007403 + ... + 188010334.

Almost surely, 2^551242002442 is an apocalyptic number.

551242002442 is a deficient number, since it is larger than the sum of its proper divisors (276749056634).

551242002442 is a wasteful number, since it uses less digits than its factorization.

551242002442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376018472.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 551242002442 its reverse (244200242155), we get a palindrome (795442244597).

The spelling of 551242002442 in words is "five hundred fifty-one billion, two hundred forty-two million, two thousand, four hundred forty-two".