55460963639 has 4 divisors (see below), whose sum is σ = 55545896856. Its totient is φ = 55376030424.

The previous prime is 55460963603. The next prime is 55460963651. The reversal of 55460963639 is 93636906455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55460963639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55460963689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42465629 + ... + 42466934.

It is an arithmetic number, because the mean of its divisors is an integer number (13886474214).

Almost surely, 2^55460963639 is an apocalyptic number.

55460963639 is a deficient number, since it is larger than the sum of its proper divisors (84933217).

55460963639 is an equidigital number, since it uses as much as digits as its factorization.

55460963639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84933216.

The product of its (nonzero) digits is 15746400, while the sum is 56.

The spelling of 55460963639 in words is "fifty-five billion, four hundred sixty million, nine hundred sixty-three thousand, six hundred thirty-nine".