5255206618437 has 12 divisors (see below), whose sum is σ = 7990372636480. Its totient is φ = 3319077864168.

The previous prime is 5255206618427. The next prime is 5255206618499. The reversal of 5255206618437 is 7348166025525.

5255206618437 is a `hidden beast` number, since 5 + 2 + 5 + 520 + 6 + 6 + 1 + 84 + 37 = 666.

It is not a de Polignac number, because 5255206618437 - 2¹⁰ = 5255206617413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5255206618427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15366101053 + ... + 15366101394.

Almost surely, 2^{5255206618437} is an apocalyptic number.

5255206618437 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

5255206618437 is a deficient number, since it is larger than the sum of its proper divisors (2735166018043).

5255206618437 is a wasteful number, since it uses less digits than its factorization.

5255206618437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30732202472 (or 30732202469 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 5255206618437 in words is "five trillion, two hundred fifty-five billion, two hundred six million, six hundred eighteen thousand, four hundred thirty-seven".