55450039 has 8 divisors (see below), whose sum is σ = 58968000. Its totient is φ = 51960576.

The previous prime is 55450009. The next prime is 55450049. The reversal of 55450039 is 93005455.

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 55450039 - 2¹³ = 55441847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55450009) 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, 3039 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (7371000).

Almost surely, 2^55450039 is an apocalyptic number.

55450039 is a deficient number, since it is larger than the sum of its proper divisors (3517961).

55450039 is a wasteful number, since it uses less digits than its factorization.

55450039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14249.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55450039 is about 7446.4782951406. The cubic root of 55450039 is about 381.3296884755.

The spelling of 55450039 in words is "fifty-five million, four hundred fifty thousand, thirty-nine".