651550049 has 8 divisors (see below), whose sum is σ = 694344960. Its totient is φ = 609960736.

The previous prime is 651550037. The next prime is 651550073. The reversal of 651550049 is 940055156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 651550049 - 2⁸ = 651549793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651550349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300284 + ... + 302445.

It is an arithmetic number, because the mean of its divisors is an integer number (86793120).

Almost surely, 2^651550049 is an apocalyptic number.

It is an amenable number.

651550049 is a deficient number, since it is larger than the sum of its proper divisors (42794911).

651550049 is a wasteful number, since it uses less digits than its factorization.

651550049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602799.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 651550049 is about 25525.4784284252. The cubic root of 651550049 is about 866.9271295216.

The spelling of 651550049 in words is "six hundred fifty-one million, five hundred fifty thousand, forty-nine".