55623887762881 has 16 divisors (see below), whose sum is σ = 56886481320768. Its totient is φ = 54374032627200.

The previous prime is 55623887762809. The next prime is 55623887762939. The reversal of 55623887762881 is 18826778832655.

It is a cyclic number.

It is not a de Polignac number, because 55623887762881 - 2⁹ = 55623887762369 is a prime.

It is a super-2 number, since 2×55623887762881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55623887762798 and 55623887762807.

It is not an unprimeable number, because it can be changed into a prime (55623887462881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621305401 + ... + 621394921.

It is an arithmetic number, because the mean of its divisors is an integer number (3555405082548).

Almost surely, 2^{55623887762881} is an apocalyptic number.

It is an amenable number.

55623887762881 is a deficient number, since it is larger than the sum of its proper divisors (1262593557887).

55623887762881 is a wasteful number, since it uses less digits than its factorization.

55623887762881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160512.

The product of its digits is 2167603200, while the sum is 76.

The spelling of 55623887762881 in words is "fifty-five trillion, six hundred twenty-three billion, eight hundred eighty-seven million, seven hundred sixty-two thousand, eight hundred eighty-one".