50253421 has 4 divisors (see below), whose sum is σ = 50376700. Its totient is φ = 50130144.

The previous prime is 50253409. The next prime is 50253431. The reversal of 50253421 is 12435205.

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 45077796 + 5175625 = 6714^2 + 2275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50253421 is a prime.

It is a super-5 number, since 5×50253421⁵ (a number of 40 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50253392 and 50253401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50253431) 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, 61026 + ... + 61843.

It is an arithmetic number, because the mean of its divisors is an integer number (12594175).

Almost surely, 2^50253421 is an apocalyptic number.

It is an amenable number.

50253421 is a deficient number, since it is larger than the sum of its proper divisors (123279).

50253421 is a wasteful number, since it uses less digits than its factorization.

50253421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123278.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50253421 is about 7088.9647340074. The cubic root of 50253421 is about 369.0245085721.

Adding to 50253421 its reverse (12435205), we get a palindrome (62688626).

The spelling of 50253421 in words is "fifty million, two hundred fifty-three thousand, four hundred twenty-one".