551440502242 has 32 divisors (see below), whose sum is σ = 951391453824. Its totient is φ = 234817152000.

The previous prime is 551440502233. The next prime is 551440502267. The reversal of 551440502242 is 242205044155.

It is a junction number, because it is equal to n+sod(n) for n = 551440502198 and 551440502207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3806517 + ... + 3948727.

It is an arithmetic number, because the mean of its divisors is an integer number (29730982932).

Almost surely, 2^551440502242 is an apocalyptic number.

551440502242 is a deficient number, since it is larger than the sum of its proper divisors (399950951582).

551440502242 is a wasteful number, since it uses less digits than its factorization.

551440502242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143994.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 551440502242 its reverse (242205044155), we get a palindrome (793645546397).

The spelling of 551440502242 in words is "five hundred fifty-one billion, four hundred forty million, five hundred two thousand, two hundred forty-two".