55327640320497 has 32 divisors (see below), whose sum is σ = 75875612538880. Its totient is φ = 35841719833920.

The previous prime is 55327640320487. The next prime is 55327640320517. The reversal of 55327640320497 is 79402304672355.

It is not a de Polignac number, because 55327640320497 - 2⁷ = 55327640320369 is a prime.

It is a super-2 number, since 2×55327640320497² (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 (55327640320487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17984472 + ... + 20834982.

It is an arithmetic number, because the mean of its divisors is an integer number (2371112891840).

Almost surely, 2^{55327640320497} is an apocalyptic number.

It is an amenable number.

55327640320497 is a deficient number, since it is larger than the sum of its proper divisors (20547972218383).

55327640320497 is a wasteful number, since it uses less digits than its factorization.

55327640320497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851333.

The product of its (nonzero) digits is 38102400, while the sum is 57.

The spelling of 55327640320497 in words is "fifty-five trillion, three hundred twenty-seven billion, six hundred forty million, three hundred twenty thousand, four hundred ninety-seven".