55379239 has 8 divisors (see below), whose sum is σ = 58245120. Its totient is φ = 52551576.

The previous prime is 55379231. The next prime is 55379249. The reversal of 55379239 is 93297355.

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 55379239 - 2³ = 55379231 is a prime.

It is a super-2 number, since 2×55379239² = 6133720224438242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55379195 and 55379204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55379231) 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, 6559 + ... + 12400.

It is an arithmetic number, because the mean of its divisors is an integer number (7280640).

Almost surely, 2^55379239 is an apocalyptic number.

55379239 is a deficient number, since it is larger than the sum of its proper divisors (2865881).

55379239 is a wasteful number, since it uses less digits than its factorization.

55379239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109.

The product of its digits is 255150, while the sum is 43.

The square root of 55379239 is about 7441.7228515983. The cubic root of 55379239 is about 381.1673222492.

The spelling of 55379239 in words is "fifty-five million, three hundred seventy-nine thousand, two hundred thirty-nine".