50290421 has 2 divisors, whose sum is σ = 50290422. Its totient is φ = 50290420.

The previous prime is 50290417. The next prime is 50290433. The reversal of 50290421 is 12409205.

50290421 = 5014² + 5015².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 25140196 = 5015^2 + 5014^2 .

It is a cyclic number.

It is not a de Polignac number, because 50290421 - 2² = 50290417 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50290621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25145210 + 25145211.

It is an arithmetic number, because the mean of its divisors is an integer number (25145211).

Almost surely, 2^50290421 is an apocalyptic number.

50290421 is the 5015-th centered square number.

It is an amenable number.

50290421 is a deficient number, since it is larger than the sum of its proper divisors (1).

50290421 is an equidigital number, since it uses as much as digits as its factorization.

50290421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 50290421 is about 7091.5739437730. The cubic root of 50290421 is about 369.1150533677.

Adding to 50290421 its reverse (12409205), we get a palindrome (62699626).

The spelling of 50290421 in words is "fifty million, two hundred ninety thousand, four hundred twenty-one".