1252050421 has 2 divisors, whose sum is σ = 1252050422. Its totient is φ = 1252050420.

The previous prime is 1252050367. The next prime is 1252050463. The reversal of 1252050421 is 1240502521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1204853521 + 47196900 = 34711^2 + 6870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252050421 - 2²¹ = 1249953269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252050392 and 1252050401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252051421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626025210 + 626025211.

It is an arithmetic number, because the mean of its divisors is an integer number (626025211).

Almost surely, 2^1252050421 is an apocalyptic number.

It is an amenable number.

1252050421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252050421 is an equidigital number, since it uses as much as digits as its factorization.

1252050421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1252050421 is about 35384.3245095904. The cubic root of 1252050421 is about 1077.8060230073.

Adding to 1252050421 its reverse (1240502521), we get a palindrome (2492552942).

The spelling of 1252050421 in words is "one billion, two hundred fifty-two million, fifty thousand, four hundred twenty-one".