55850939 has 2 divisors, whose sum is σ = 55850940. Its totient is φ = 55850938.

The previous prime is 55850911. The next prime is 55850941. The reversal of 55850939 is 93905855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55850939 - 2¹⁶ = 55785403 is a prime.

Together with 55850941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55850939.

It is not a weakly prime, because it can be changed into another prime (55850239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27925469 + 27925470.

It is an arithmetic number, because the mean of its divisors is an integer number (27925470).

Almost surely, 2^55850939 is an apocalyptic number.

55850939 is a deficient number, since it is larger than the sum of its proper divisors (1).

55850939 is an equidigital number, since it uses as much as digits as its factorization.

55850939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 55850939 is about 7473.3485801212. The cubic root of 55850939 is about 382.2464784492.

The spelling of 55850939 in words is "fifty-five million, eight hundred fifty thousand, nine hundred thirty-nine".