50997225749 has 4 divisors (see below), whose sum is σ = 51084104064. Its totient is φ = 50910347436.

The previous prime is 50997225733. The next prime is 50997225803. The reversal of 50997225749 is 94752279905.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50997225749 - 2⁴ = 50997225733 is a prime.

It is a super-2 number, since 2×50997225749² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50997221749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43438277 + ... + 43439450.

It is an arithmetic number, because the mean of its divisors is an integer number (12771026016).

Almost surely, 2^50997225749 is an apocalyptic number.

It is an amenable number.

50997225749 is a deficient number, since it is larger than the sum of its proper divisors (86878315).

50997225749 is an equidigital number, since it uses as much as digits as its factorization.

50997225749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86878314.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 50997225749 in words is "fifty billion, nine hundred ninety-seven million, two hundred twenty-five thousand, seven hundred forty-nine".