551242544140 has 12 divisors (see below), whose sum is σ = 1157609342736. Its totient is φ = 220497017648.

The previous prime is 551242544093. The next prime is 551242544207. The reversal of 551242544140 is 41445242155.

It is a self number, because there is not a number n which added to its sum of digits gives 551242544140.

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, 13781063584 + ... + 13781063623.

It is an arithmetic number, because the mean of its divisors is an integer number (96467445228).

Almost surely, 2^551242544140 is an apocalyptic number.

It is an amenable number.

551242544140 is an abundant number, since it is smaller than the sum of its proper divisors (606366798596).

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

551242544140 is a wasteful number, since it uses less digits than its factorization.

551242544140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27562127216 (or 27562127214 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 551242544140 its reverse (41445242155), we get a palindrome (592687786295).

The spelling of 551242544140 in words is "five hundred fifty-one billion, two hundred forty-two million, five hundred forty-four thousand, one hundred forty".