51072299033 has 16 divisors (see below), whose sum is σ = 60569040000. Its totient is φ = 43034268816.

The previous prime is 51072299009. The next prime is 51072299063. The reversal of 51072299033 is 33099227015.

It is a happy number.

It is not a de Polignac number, because 51072299033 - 2²² = 51068104729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51072299063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241618 + ... + 1282091.

It is an arithmetic number, because the mean of its divisors is an integer number (3785565000).

Almost surely, 2^51072299033 is an apocalyptic number.

It is an amenable number.

51072299033 is a deficient number, since it is larger than the sum of its proper divisors (9496740967).

51072299033 is an equidigital number, since it uses as much as digits as its factorization.

51072299033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523789 (or 2523775 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The spelling of 51072299033 in words is "fifty-one billion, seventy-two million, two hundred ninety-nine thousand, thirty-three".