25060421 has 4 divisors (see below), whose sum is σ = 25115244. Its totient is φ = 25005600.

The previous prime is 25060403. The next prime is 25060429. The reversal of 25060421 is 12406052.

It is a happy number.

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 11296321 + 13764100 = 3361^2 + 3710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25060421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25060393 and 25060402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25060429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26720 + ... + 27641.

It is an arithmetic number, because the mean of its divisors is an integer number (6278811).

Almost surely, 2^25060421 is an apocalyptic number.

It is an amenable number.

25060421 is a deficient number, since it is larger than the sum of its proper divisors (54823).

25060421 is an equidigital number, since it uses as much as digits as its factorization.

25060421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54822.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25060421 is about 5006.0384537077. The cubic root of 25060421 is about 292.6371470709.

Adding to 25060421 its reverse (12406052), we get a palindrome (37466473).

The spelling of 25060421 in words is "twenty-five million, sixty thousand, four hundred twenty-one".