55712929 has 4 divisors (see below), whose sum is σ = 55787284. Its totient is φ = 55638576.

The previous prime is 55712903. The next prime is 55712941. The reversal of 55712929 is 92921755.

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 37454400 + 18258529 = 6120^2 + 4273^2 .

It is a cyclic number.

It is not a de Polignac number, because 55712929 - 2⁵ = 55712897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55712891 and 55712900.

It is not an unprimeable number, because it can be changed into a prime (55712989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36042 + ... + 37555.

It is an arithmetic number, because the mean of its divisors is an integer number (13946821).

Almost surely, 2^55712929 is an apocalyptic number.

It is an amenable number.

55712929 is a deficient number, since it is larger than the sum of its proper divisors (74355).

55712929 is an equidigital number, since it uses as much as digits as its factorization.

55712929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74354.

The product of its digits is 56700, while the sum is 40.

The square root of 55712929 is about 7464.1093909454. The cubic root of 55712929 is about 381.9313697599.

The spelling of 55712929 in words is "fifty-five million, seven hundred twelve thousand, nine hundred twenty-nine".