554990977 has 2 divisors, whose sum is σ = 554990978. Its totient is φ = 554990976.

The previous prime is 554990971. The next prime is 554991001. The reversal of 554990977 is 779099455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407999601 + 146991376 = 20199^2 + 12124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554990977 is a prime.

It is not a weakly prime, because it can be changed into another prime (554990971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277495488 + 277495489.

It is an arithmetic number, because the mean of its divisors is an integer number (277495489).

Almost surely, 2^554990977 is an apocalyptic number.

It is an amenable number.

554990977 is a deficient number, since it is larger than the sum of its proper divisors (1).

554990977 is an equidigital number, since it uses as much as digits as its factorization.

554990977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3572100, while the sum is 55.

The square root of 554990977 is about 23558.2464754913. The cubic root of 554990977 is about 821.7921229678.

The spelling of 554990977 in words is "five hundred fifty-four million, nine hundred ninety thousand, nine hundred seventy-seven".