55546259643 has 24 divisors (see below), whose sum is σ = 91710559200. Its totient is φ = 31735476864.

The previous prime is 55546259623. The next prime is 55546259647. The reversal of 55546259643 is 34695264555.

55546259643 is a `hidden beast` number, since 5 + 5 + 5 + 4 + 6 + 2 + 596 + 43 = 666.

It is not a de Polignac number, because 55546259643 - 2¹⁸ = 55545997499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55546259643.

It is not an unprimeable number, because it can be changed into a prime (55546259647) 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, 329073 + ... + 468381.

It is an arithmetic number, because the mean of its divisors is an integer number (3821273300).

Almost surely, 2^55546259643 is an apocalyptic number.

55546259643 is a deficient number, since it is larger than the sum of its proper divisors (36164299557).

55546259643 is a wasteful number, since it uses less digits than its factorization.

55546259643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145651 (or 145648 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 54.

The spelling of 55546259643 in words is "fifty-five billion, five hundred forty-six million, two hundred fifty-nine thousand, six hundred forty-three".