50897957550 has 48 divisors (see below), whose sum is σ = 137702115072. Its totient is φ = 12338898400.

The previous prime is 50897957521. The next prime is 50897957659. The reversal of 50897957550 is 5575979805.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15421974 + ... + 15425273.

It is an arithmetic number, because the mean of its divisors is an integer number (2868794064).

Almost surely, 2^50897957550 is an apocalyptic number.

50897957550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50897957550 is an abundant number, since it is smaller than the sum of its proper divisors (86804157522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50897957550 is a wasteful number, since it uses less digits than its factorization.

50897957550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30847273 (or 30847268 counting only the distinct ones).

The product of its (nonzero) digits is 19845000, while the sum is 60.

The spelling of 50897957550 in words is "fifty billion, eight hundred ninety-seven million, nine hundred fifty-seven thousand, five hundred fifty".