55546786479 has 16 divisors (see below), whose sum is σ = 77297121792. Its totient is φ = 35414431008.

The previous prime is 55546786457. The next prime is 55546786481. The reversal of 55546786479 is 97468764555.

It is not a de Polignac number, because 55546786479 - 2⁵ = 55546786447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55546786409) 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, 304422 + ... + 451404.

It is an arithmetic number, because the mean of its divisors is an integer number (4831070112).

Almost surely, 2^55546786479 is an apocalyptic number.

55546786479 is a deficient number, since it is larger than the sum of its proper divisors (21750335313).

55546786479 is a wasteful number, since it uses less digits than its factorization.

55546786479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152486.

The product of its digits is 254016000, while the sum is 66.

The spelling of 55546786479 in words is "fifty-five billion, five hundred forty-six million, seven hundred eighty-six thousand, four hundred seventy-nine".