55080919 has 2 divisors, whose sum is σ = 55080920. Its totient is φ = 55080918.

The previous prime is 55080911. The next prime is 55080923. The reversal of 55080919 is 91908055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55080919 - 2³ = 55080911 is a prime.

It is a super-2 number, since 2×55080919² = 6067815275769122, which contains 22 as substring.

It is equal to p_3286792 and since 55080919 and 3286792 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55080911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27540459 + 27540460.

It is an arithmetic number, because the mean of its divisors is an integer number (27540460).

Almost surely, 2^55080919 is an apocalyptic number.

55080919 is a deficient number, since it is larger than the sum of its proper divisors (1).

55080919 is an equidigital number, since it uses as much as digits as its factorization.

55080919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 55080919 is about 7421.6520398089. The cubic root of 55080919 is about 380.4816583892.

The spelling of 55080919 in words is "fifty-five million, eighty thousand, nine hundred nineteen".