50390897 has 4 divisors (see below), whose sum is σ = 51245040. Its totient is φ = 49536756.

The previous prime is 50390891. The next prime is 50390911. The reversal of 50390897 is 79809305.

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 50390897 - 2⁶ = 50390833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50390891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426983 + ... + 427100.

It is an arithmetic number, because the mean of its divisors is an integer number (12811260).

Almost surely, 2^50390897 is an apocalyptic number.

It is an amenable number.

50390897 is a deficient number, since it is larger than the sum of its proper divisors (854143).

50390897 is an equidigital number, since it uses as much as digits as its factorization.

50390897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854142.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 50390897 is about 7098.6545908362. The cubic root of 50390897 is about 369.3607100403.

The spelling of 50390897 in words is "fifty million, three hundred ninety thousand, eight hundred ninety-seven".