554777947 has 2 divisors, whose sum is σ = 554777948. Its totient is φ = 554777946.

The previous prime is 554777911. The next prime is 554778013. The reversal of 554777947 is 749777455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 554777947 - 2¹⁵ = 554745179 is a prime.

It is not a weakly prime, because it can be changed into another prime (554777347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277388973 + 277388974.

It is an arithmetic number, because the mean of its divisors is an integer number (277388974).

Almost surely, 2^554777947 is an apocalyptic number.

554777947 is a deficient number, since it is larger than the sum of its proper divisors (1).

554777947 is an equidigital number, since it uses as much as digits as its factorization.

554777947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8643600, while the sum is 55.

The square root of 554777947 is about 23553.7246948333. The cubic root of 554777947 is about 821.6869628316.

The spelling of 554777947 in words is "five hundred fifty-four million, seven hundred seventy-seven thousand, nine hundred forty-seven".