494099551 has 12 divisors (see below), whose sum is σ = 546567480. Its totient is φ = 442975680.

The previous prime is 494099537. The next prime is 494099561. The reversal of 494099551 is 155990494.

It is a happy number.

It is not a de Polignac number, because 494099551 - 2⁷ = 494099423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494099561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54405 + ... + 62833.

It is an arithmetic number, because the mean of its divisors is an integer number (45547290).

Almost surely, 2^494099551 is an apocalyptic number.

494099551 is a deficient number, since it is larger than the sum of its proper divisors (52467929).

494099551 is an equidigital number, since it uses as much as digits as its factorization.

494099551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586 (or 8513 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 494099551 is about 22228.3501636986. The cubic root of 494099551 is about 790.5660372136.

The spelling of 494099551 in words is "four hundred ninety-four million, ninety-nine thousand, five hundred fifty-one".