55572473329 has 4 divisors (see below), whose sum is σ = 55770240420. Its totient is φ = 55374706240.

The previous prime is 55572473321. The next prime is 55572473347. The reversal of 55572473329 is 92337427555.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25648663104 + 29923810225 = 160152^2 + 172985^2 .

It is a cyclic number.

It is not a de Polignac number, because 55572473329 - 2³ = 55572473321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55572473321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98883124 + ... + 98883685.

It is an arithmetic number, because the mean of its divisors is an integer number (13942560105).

Almost surely, 2^55572473329 is an apocalyptic number.

It is an amenable number.

55572473329 is a deficient number, since it is larger than the sum of its proper divisors (197767091).

55572473329 is a wasteful number, since it uses less digits than its factorization.

55572473329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197767090.

The product of its digits is 7938000, while the sum is 52.

The spelling of 55572473329 in words is "fifty-five billion, five hundred seventy-two million, four hundred seventy-three thousand, three hundred twenty-nine".