55119487 has 2 divisors, whose sum is σ = 55119488. Its totient is φ = 55119486.

The previous prime is 55119481. The next prime is 55119521. The reversal of 55119487 is 78491155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55119487 - 2¹⁹ = 54595199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55119481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27559743 + 27559744.

It is an arithmetic number, because the mean of its divisors is an integer number (27559744).

Almost surely, 2^55119487 is an apocalyptic number.

55119487 is a deficient number, since it is larger than the sum of its proper divisors (1).

55119487 is an equidigital number, since it uses as much as digits as its factorization.

55119487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 40.

The square root of 55119487 is about 7424.2499284440. The cubic root of 55119487 is about 380.5704428730.

The spelling of 55119487 in words is "fifty-five million, one hundred nineteen thousand, four hundred eighty-seven".