52391502009 has 96 divisors (see below), whose sum is σ = 96009338880. Its totient is φ = 26740425600.

The previous prime is 52391502001. The next prime is 52391502013. The reversal of 52391502009 is 90020519325.

It is a happy number.

It is not a de Polignac number, because 52391502009 - 2³ = 52391502001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52391502001) 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 95 ways as a sum of consecutive naturals, for example, 15595672 + ... + 15599030.

It is an arithmetic number, because the mean of its divisors is an integer number (1000097280).

Almost surely, 2^52391502009 is an apocalyptic number.

It is an amenable number.

52391502009 is a deficient number, since it is larger than the sum of its proper divisors (43617836871).

52391502009 is a wasteful number, since it uses less digits than its factorization.

52391502009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771 (or 3768 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The spelling of 52391502009 in words is "fifty-two billion, three hundred ninety-one million, five hundred two thousand, nine".