55996709 has 8 divisors (see below), whose sum is σ = 58035960. Its totient is φ = 53964736.

The previous prime is 55996687. The next prime is 55996711. The reversal of 55996709 is 90769955.

55996709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 494209 + 55502500 = 703^2 + 7450^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55996709 - 2¹² = 55992613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55996729) 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 7 ways as a sum of consecutive naturals, for example, 17459 + ... + 20415.

It is an arithmetic number, because the mean of its divisors is an integer number (7254495).

Almost surely, 2^55996709 is an apocalyptic number.

It is an amenable number.

55996709 is a deficient number, since it is larger than the sum of its proper divisors (2039251).

55996709 is a wasteful number, since it uses less digits than its factorization.

55996709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 55996709 is about 7483.0948811304. The cubic root of 55996709 is about 382.5787418166.

The spelling of 55996709 in words is "fifty-five million, nine hundred ninety-six thousand, seven hundred nine".