55352406687885 has 24 divisors (see below), whose sum is σ = 96644494023480. Its totient is φ = 29305799741952.

The previous prime is 55352406687881. The next prime is 55352406687917. The reversal of 55352406687885 is 58878660425355.

55352406687885 is a `hidden beast` number, since 5 + 535 + 2 + 4 + 0 + 6 + 6 + 8 + 7 + 8 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2563492390281 + 52788914297604 = 1601091^2 + 7265598^2 .

It is not a de Polignac number, because 55352406687885 - 2² = 55352406687881 is a prime.

It is a super-2 number, since 2×55352406687885² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55352406687881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4489240120 + ... + 4489252449.

It is an arithmetic number, because the mean of its divisors is an integer number (4026853917645).

Almost surely, 2^{55352406687885} is an apocalyptic number.

It is an amenable number.

55352406687885 is a deficient number, since it is larger than the sum of its proper divisors (41292087335595).

55352406687885 is a wasteful number, since it uses less digits than its factorization.

55352406687885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978492717 (or 8978492714 counting only the distinct ones).

The product of its (nonzero) digits is 1935360000, while the sum is 72.

The spelling of 55352406687885 in words is "fifty-five trillion, three hundred fifty-two billion, four hundred six million, six hundred eighty-seven thousand, eight hundred eighty-five".