2455555493 has 2 divisors, whose sum is σ = 2455555494. Its totient is φ = 2455555492.

The previous prime is 2455555489. The next prime is 2455555567. The reversal of 2455555493 is 3945555542.

2455555493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1794962689 + 660592804 = 42367^2 + 25702^2 .

It is a cyclic number.

It is not a de Polignac number, because 2455555493 - 2² = 2455555489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2455555393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227777746 + 1227777747.

It is an arithmetic number, because the mean of its divisors is an integer number (1227777747).

Almost surely, 2^2455555493 is an apocalyptic number.

It is an amenable number.

2455555493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455555493 is an equidigital number, since it uses as much as digits as its factorization.

2455555493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700000, while the sum is 47.

The square root of 2455555493 is about 49553.5618598704. The cubic root of 2455555493 is about 1349.1179410467.

The spelling of 2455555493 in words is "two billion, four hundred fifty-five million, five hundred fifty-five thousand, four hundred ninety-three".