554008991 has 2 divisors, whose sum is σ = 554008992. Its totient is φ = 554008990.

The previous prime is 554008979. The next prime is 554009017. The reversal of 554008991 is 199800455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 554008991 - 2⁶ = 554008927 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554008591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277004495 + 277004496.

It is an arithmetic number, because the mean of its divisors is an integer number (277004496).

Almost surely, 2^554008991 is an apocalyptic number.

554008991 is a deficient number, since it is larger than the sum of its proper divisors (1).

554008991 is an equidigital number, since it uses as much as digits as its factorization.

554008991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 554008991 is about 23537.3955865979. The cubic root of 554008991 is about 821.3071512499.

The spelling of 554008991 in words is "five hundred fifty-four million, eight thousand, nine hundred ninety-one".