25060021 has 12 divisors (see below), whose sum is σ = 29388288. Its totient is φ = 21305592.

The previous prime is 25059967. The next prime is 25060033. The reversal of 25060021 is 12006052.

It is a happy number.

It is not a de Polignac number, because 25060021 - 2¹⁵ = 25027253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25059977 and 25060004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25060051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4210 + ... + 8236.

It is an arithmetic number, because the mean of its divisors is an integer number (2449024).

Almost surely, 2^25060021 is an apocalyptic number.

It is an amenable number.

25060021 is a deficient number, since it is larger than the sum of its proper divisors (4328267).

25060021 is a wasteful number, since it uses less digits than its factorization.

25060021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168 (or 4161 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25060021 is about 5005.9985017976. The cubic root of 25060021 is about 292.6355900941.

Adding to 25060021 its reverse (12006052), we get a palindrome (37066073).

The spelling of 25060021 in words is "twenty-five million, sixty thousand, twenty-one".