88563255381 has 6 divisors (see below), whose sum is σ = 127924702230. Its totient is φ = 59042170248.

The previous prime is 88563255379. The next prime is 88563255409. The reversal of 88563255381 is 18355236588.

It is a happy number.

88563255381 is a `hidden beast` number, since 8 + 8 + 5 + 6 + 3 + 2 + 553 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78730748100 + 9832507281 = 280590^2 + 99159^2 .

It is not a de Polignac number, because 88563255381 - 2¹ = 88563255379 is a prime.

It is a super-2 number, since 2×88563255381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88563255311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4920180846 + ... + 4920180863.

It is an arithmetic number, because the mean of its divisors is an integer number (21320783705).

Almost surely, 2^88563255381 is an apocalyptic number.

It is an amenable number.

88563255381 is a deficient number, since it is larger than the sum of its proper divisors (39361446849).

88563255381 is a wasteful number, since it uses less digits than its factorization.

88563255381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840361715 (or 9840361712 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The spelling of 88563255381 in words is "eighty-eight billion, five hundred sixty-three million, two hundred fifty-five thousand, three hundred eighty-one".