55456542673513 has 8 divisors (see below), whose sum is σ = 56844187081416. Its totient is φ = 54070567113600.

The previous prime is 55456542673507. The next prime is 55456542673559. The reversal of 55456542673513 is 31537624565455.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10030668097129 + 45425874576384 = 3167123^2 + 6739872^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55456542673513 is a prime.

It is a super-2 number, since 2×55456542673513² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55456542679513) 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, 417144706 + ... + 417277627.

It is an arithmetic number, because the mean of its divisors is an integer number (7105523385177).

Almost surely, 2^{55456542673513} is an apocalyptic number.

It is an amenable number.

55456542673513 is a deficient number, since it is larger than the sum of its proper divisors (1387644407903).

55456542673513 is a wasteful number, since it uses less digits than its factorization.

55456542673513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834423995.

The product of its digits is 226800000, while the sum is 61.

The spelling of 55456542673513 in words is "fifty-five trillion, four hundred fifty-six billion, five hundred forty-two million, six hundred seventy-three thousand, five hundred thirteen".