554447997 has 24 divisors (see below), whose sum is σ = 852991776. Its totient is φ = 359636112.

The previous prime is 554447983. The next prime is 554448019. The reversal of 554447997 is 799744455.

554447997 is a `hidden beast` number, since 5 + 544 + 4 + 7 + 9 + 97 = 666.

It is not a de Polignac number, because 554447997 - 2⁷ = 554447869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554447917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21843 + ... + 39824.

It is an arithmetic number, because the mean of its divisors is an integer number (35541324).

Almost surely, 2^554447997 is an apocalyptic number.

It is an amenable number.

554447997 is a deficient number, since it is larger than the sum of its proper divisors (298543779).

554447997 is an equidigital number, since it uses as much as digits as its factorization.

554447997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61719 (or 61707 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 554447997 is about 23546.7194530363. The cubic root of 554447997 is about 821.5240331522.

The spelling of 554447997 in words is "five hundred fifty-four million, four hundred forty-seven thousand, nine hundred ninety-seven".