55447673513 has 8 divisors (see below), whose sum is σ = 55830179400. Its totient is φ = 55065306240.

The previous prime is 55447673503. The next prime is 55447673551. The reversal of 55447673513 is 31537674455.

55447673513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 47224384 + 55400449129 = 6872^2 + 235373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55447673513 - 2¹⁴ = 55447657129 is a prime.

It is a super-2 number, since 2×55447673513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55447673503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844631 + ... + 907907.

It is an arithmetic number, because the mean of its divisors is an integer number (6978772425).

Almost surely, 2^55447673513 is an apocalyptic number.

It is an amenable number.

55447673513 is a deficient number, since it is larger than the sum of its proper divisors (382505887).

55447673513 is a wasteful number, since it uses less digits than its factorization.

55447673513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69307.

The product of its digits is 5292000, while the sum is 50.

The spelling of 55447673513 in words is "fifty-five billion, four hundred forty-seven million, six hundred seventy-three thousand, five hundred thirteen".