55485019 has 2 divisors, whose sum is σ = 55485020. Its totient is φ = 55485018.

The previous prime is 55484983. The next prime is 55485029. The reversal of 55485019 is 91058455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55485019 - 2¹¹ = 55482971 is a prime.

It is a super-2 number, since 2×55485019² = 6157174666860722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55485029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27742509 + 27742510.

It is an arithmetic number, because the mean of its divisors is an integer number (27742510).

Almost surely, 2^55485019 is an apocalyptic number.

55485019 is a deficient number, since it is larger than the sum of its proper divisors (1).

55485019 is an equidigital number, since it uses as much as digits as its factorization.

55485019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 55485019 is about 7448.8266861298. The cubic root of 55485019 is about 381.4098573917.

The spelling of 55485019 in words is "fifty-five million, four hundred eighty-five thousand, nineteen".