50905397 has 4 divisors (see below), whose sum is σ = 50920320. Its totient is φ = 50890476.

The previous prime is 50905369. The next prime is 50905409. The reversal of 50905397 is 79350905.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 50905397 - 2⁶ = 50905333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50905397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50901397) 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, 458 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (12730080).

Almost surely, 2^50905397 is an apocalyptic number.

It is an amenable number.

50905397 is a deficient number, since it is larger than the sum of its proper divisors (14923).

50905397 is an equidigital number, since it uses as much as digits as its factorization.

50905397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14922.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 50905397 is about 7134.8018192519. The cubic root of 50905397 is about 370.6135352732.

The spelling of 50905397 in words is "fifty million, nine hundred five thousand, three hundred ninety-seven".