55147716549 has 24 divisors (see below), whose sum is σ = 81436979520. Its totient is φ = 35952003648.

The previous prime is 55147716541. The next prime is 55147716551. The reversal of 55147716549 is 94561774155.

55147716549 is a `hidden beast` number, since 5 + 5 + 1 + 477 + 165 + 4 + 9 = 666.

It is not a de Polignac number, because 55147716549 - 2³ = 55147716541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55147716495 and 55147716504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55147716541) 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, 251169 + ... + 416390.

It is an arithmetic number, because the mean of its divisors is an integer number (3393207480).

Almost surely, 2^55147716549 is an apocalyptic number.

It is an amenable number.

55147716549 is a deficient number, since it is larger than the sum of its proper divisors (26289262971).

55147716549 is a wasteful number, since it uses less digits than its factorization.

55147716549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667769 (or 667766 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 55147716549 in words is "fifty-five billion, one hundred forty-seven million, seven hundred sixteen thousand, five hundred forty-nine".