54166212829 has 4 divisors (see below), whose sum is σ = 54246222684. Its totient is φ = 54086202976.

The previous prime is 54166212823. The next prime is 54166212853. The reversal of 54166212829 is 92821266145.

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 49813776100 + 4352436729 = 223190^2 + 65973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54166212829 is a prime.

It is a super-2 number, since 2×54166212829² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54166212823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40003912 + ... + 40005265.

It is an arithmetic number, because the mean of its divisors is an integer number (13561555671).

Almost surely, 2^54166212829 is an apocalyptic number.

It is an amenable number.

54166212829 is a deficient number, since it is larger than the sum of its proper divisors (80009855).

54166212829 is an equidigital number, since it uses as much as digits as its factorization.

54166212829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80009854.

The product of its digits is 414720, while the sum is 46.

The spelling of 54166212829 in words is "fifty-four billion, one hundred sixty-six million, two hundred twelve thousand, eight hundred twenty-nine".