41725437421 has 2 divisors, whose sum is σ = 41725437422. Its totient is φ = 41725437420.

The previous prime is 41725437401. The next prime is 41725437433. The reversal of 41725437421 is 12473452714.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32035988196 + 9689449225 = 178986^2 + 98435^2 .

It is a cyclic number.

It is not a de Polignac number, because 41725437421 - 2¹¹ = 41725435373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41725437401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20862718710 + 20862718711.

It is an arithmetic number, because the mean of its divisors is an integer number (20862718711).

Almost surely, 2^41725437421 is an apocalyptic number.

It is an amenable number.

41725437421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41725437421 is an equidigital number, since it uses as much as digits as its factorization.

41725437421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 40.

The spelling of 41725437421 in words is "forty-one billion, seven hundred twenty-five million, four hundred thirty-seven thousand, four hundred twenty-one".