50421755 has 4 divisors (see below), whose sum is σ = 60506112. Its totient is φ = 40337400.

The previous prime is 50421751. The next prime is 50421821. The reversal of 50421755 is 55712405.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50421755 - 2² = 50421751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50421751) 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, 5042171 + ... + 5042180.

It is an arithmetic number, because the mean of its divisors is an integer number (15126528).

Almost surely, 2^50421755 is an apocalyptic number.

50421755 is a deficient number, since it is larger than the sum of its proper divisors (10084357).

50421755 is a wasteful number, since it uses less digits than its factorization.

50421755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084356.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 50421755 is about 7100.8277686478. The cubic root of 50421755 is about 369.4360901036.

The spelling of 50421755 in words is "fifty million, four hundred twenty-one thousand, seven hundred fifty-five".