55145663883 has 12 divisors (see below), whose sum is σ = 79880503560. Its totient is φ = 36659627136.

The previous prime is 55145663813. The next prime is 55145663927. The reversal of 55145663883 is 38836654155.

It is a happy number.

55145663883 is a `hidden beast` number, since 5 + 51 + 456 + 63 + 8 + 83 = 666.

55145663883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55145663883 - 2¹⁸ = 55145401739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55145663813) 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, 8675713 + ... + 8682066.

It is an arithmetic number, because the mean of its divisors is an integer number (6656708630).

Almost surely, 2^55145663883 is an apocalyptic number.

55145663883 is a deficient number, since it is larger than the sum of its proper divisors (24734839677).

55145663883 is a wasteful number, since it uses less digits than its factorization.

55145663883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17358138 (or 17358135 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 55145663883 in words is "fifty-five billion, one hundred forty-five million, six hundred sixty-three thousand, eight hundred eighty-three".