55782064129 has 8 divisors (see below), whose sum is σ = 60855599520. Its totient is φ = 50708935200.

The previous prime is 55782064099. The next prime is 55782064157. The reversal of 55782064129 is 92146028755.

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

It is not a de Polignac number, because 55782064129 - 2¹³ = 55782055937 is a prime.

It is a super-2 number, since 2×55782064129² (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 (55782064159) 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 7 ways as a sum of consecutive naturals, for example, 233374 + ... + 407464.

It is an arithmetic number, because the mean of its divisors is an integer number (7606949940).

Almost surely, 2^55782064129 is an apocalyptic number.

It is an amenable number.

55782064129 is a deficient number, since it is larger than the sum of its proper divisors (5073535391).

55782064129 is a wasteful number, since it uses less digits than its factorization.

55782064129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203231.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 55782064129 in words is "fifty-five billion, seven hundred eighty-two million, sixty-four thousand, one hundred twenty-nine".