554155493 has 2 divisors, whose sum is σ = 554155494.
Its totient is φ = 554155492.
The previous prime is 554155487. The next prime is 554155507. The reversal of 554155493 is 394551455.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 345699649 + 208455844 = 18593^2 + 14438^2
It is a cyclic number.
It is not a de Polignac number, because 554155493 - 26 = 554155429 is a prime.
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 554155493.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (554155453) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277077746 + 277077747.
It is an arithmetic number, because the mean of its divisors is an integer number (277077747).
Almost surely, 2554155493 is an apocalyptic number.
It is an amenable number.
554155493 is a deficient number, since it is larger than the sum of its proper divisors (1).
554155493 is an equidigital number, since it uses as much as digits as its factorization.
554155493 is an evil number, because the sum of its binary digits is even.
The product of its digits is 270000, while the sum is 41.
The square root of 554155493 is about 23540.5074924055.
The cubic root of 554155493 is about 821.3795402892.
The spelling of 554155493 in words is "five hundred fifty-four million, one hundred fifty-five thousand, four hundred ninety-three".