55019359 has 2 divisors, whose sum is σ = 55019360. Its totient is φ = 55019358.

The previous prime is 55019357. The next prime is 55019401. The reversal of 55019359 is 95391055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55019359 - 2¹ = 55019357 is a prime.

Together with 55019357, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55019357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27509679 + 27509680.

It is an arithmetic number, because the mean of its divisors is an integer number (27509680).

Almost surely, 2^55019359 is an apocalyptic number.

55019359 is a deficient number, since it is larger than the sum of its proper divisors (1).

55019359 is an equidigital number, since it uses as much as digits as its factorization.

55019359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 55019359 is about 7417.5035557794. The cubic root of 55019359 is about 380.3398598462.

The spelling of 55019359 in words is "fifty-five million, nineteen thousand, three hundred fifty-nine".