55883239 has 2 divisors, whose sum is σ = 55883240. Its totient is φ = 55883238.

The previous prime is 55883231. The next prime is 55883291. The reversal of 55883239 is 93238855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55883239 - 2³ = 55883231 is a prime.

It is a super-2 number, since 2×55883239² = 6245872802262242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55883195 and 55883204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55883231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27941619 + 27941620.

It is an arithmetic number, because the mean of its divisors is an integer number (27941620).

Almost surely, 2^55883239 is an apocalyptic number.

55883239 is a deficient number, since it is larger than the sum of its proper divisors (1).

55883239 is an equidigital number, since it uses as much as digits as its factorization.

55883239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 55883239 is about 7475.5092803099. The cubic root of 55883239 is about 382.3201518265.

The spelling of 55883239 in words is "fifty-five million, eight hundred eighty-three thousand, two hundred thirty-nine".