55398039 has 8 divisors (see below), whose sum is σ = 74799360. Its totient is φ = 36464376.

The previous prime is 55398037. The next prime is 55398041. The reversal of 55398039 is 93089355.

It is an interprime number because it is at equal distance from previous prime (55398037) and next prime (55398041).

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

It is not a de Polignac number, because 55398039 - 2¹ = 55398037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55398037) 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, 116637 + ... + 117110.

It is an arithmetic number, because the mean of its divisors is an integer number (9349920).

Almost surely, 2^55398039 is an apocalyptic number.

55398039 is a deficient number, since it is larger than the sum of its proper divisors (19401321).

55398039 is a wasteful number, since it uses less digits than its factorization.

55398039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233829.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 55398039 is about 7442.9858927718. The cubic root of 55398039 is about 381.2104499330.

The spelling of 55398039 in words is "fifty-five million, three hundred ninety-eight thousand, thirty-nine".