55746309 has 16 divisors (see below), whose sum is σ = 76804992. Its totient is φ = 35938368.

The previous prime is 55746287. The next prime is 55746329. The reversal of 55746309 is 90364755.

55746309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55746309 - 2¹¹ = 55744261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55746329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17752 + ... + 20654.

It is an arithmetic number, because the mean of its divisors is an integer number (4800312).

Almost surely, 2^55746309 is an apocalyptic number.

It is an amenable number.

55746309 is a deficient number, since it is larger than the sum of its proper divisors (21058683).

55746309 is a wasteful number, since it uses less digits than its factorization.

55746309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 55746309 is about 7466.3450898013. The cubic root of 55746309 is about 382.0076316741.

The spelling of 55746309 in words is "fifty-five million, seven hundred forty-six thousand, three hundred nine".