50421401 has 4 divisors (see below), whose sum is σ = 52160100. Its totient is φ = 48682704.

The previous prime is 50421379. The next prime is 50421403. The reversal of 50421401 is 10412405.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27573001 + 22848400 = 5251^2 + 4780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50421401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50421401.

It is not an unprimeable number, because it can be changed into a prime (50421403) 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, 869306 + ... + 869363.

It is an arithmetic number, because the mean of its divisors is an integer number (13040025).

Almost surely, 2^50421401 is an apocalyptic number.

It is an amenable number.

50421401 is a deficient number, since it is larger than the sum of its proper divisors (1738699).

50421401 is a wasteful number, since it uses less digits than its factorization.

50421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738698.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 50421401 is about 7100.8028419327. The cubic root of 50421401 is about 369.4352255252.

Adding to 50421401 its reverse (10412405), we get a palindrome (60833806).

The spelling of 50421401 in words is "fifty million, four hundred twenty-one thousand, four hundred one".