5021311543551 has 8 divisors (see below), whose sum is σ = 7438980064560. Its totient is φ = 3347541029016.

The previous prime is 5021311543543. The next prime is 5021311543559. The reversal of 5021311543551 is 1553451131205.

5021311543551 is a `hidden beast` number, since 5 + 0 + 21 + 31 + 1 + 54 + 3 + 551 = 666.

5021311543551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5021311543543) and next prime (5021311543559).

It is not a de Polignac number, because 5021311543551 - 2³ = 5021311543543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5021311543559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92987250780 + ... + 92987250833.

It is an arithmetic number, because the mean of its divisors is an integer number (929872508070).

Almost surely, 2^{5021311543551} is an apocalyptic number.

5021311543551 is a deficient number, since it is larger than the sum of its proper divisors (2417668521009).

5021311543551 is a wasteful number, since it uses less digits than its factorization.

5021311543551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185974501622 (or 185974501616 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

Adding to 5021311543551 its reverse (1553451131205), we get a palindrome (6574762674756).

The spelling of 5021311543551 in words is "five trillion, twenty-one billion, three hundred eleven million, five hundred forty-three thousand, five hundred fifty-one".