55709039 has 8 divisors (see below), whose sum is σ = 56952720. Its totient is φ = 54475456.

The previous prime is 55709011. The next prime is 55709041. The reversal of 55709039 is 93090755.

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 55709039 - 2¹⁶ = 55643503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55708993 and 55709011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55709009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9227 + ... + 14019.

It is an arithmetic number, because the mean of its divisors is an integer number (7119090).

Almost surely, 2^55709039 is an apocalyptic number.

55709039 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55709039 is a deficient number, since it is larger than the sum of its proper divisors (1243681).

55709039 is a wasteful number, since it uses less digits than its factorization.

55709039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 55709039 is about 7463.8488060785. The cubic root of 55709039 is about 381.9224804552.

The spelling of 55709039 in words is "fifty-five million, seven hundred nine thousand, thirty-nine".