25011 has 12 divisors (see below), whose sum is σ = 41392. Its totient is φ = 14256.

The previous prime is 24989. The next prime is 25013. The reversal of 25011 is 11052.

It is a happy number.

25011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 25011 - 2⁵ = 24979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24984 and 25002.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25011.

It is not an unprimeable number, because it can be changed into a prime (25013) 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, 136 + ... + 261.

2²⁵⁰¹¹ is an apocalyptic number.

25011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25011 is a deficient number, since it is larger than the sum of its proper divisors (16381).

25011 is a wasteful number, since it uses less digits than its factorization.

25011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 25011 is about 158.1486642372. The cubic root of 25011 is about 29.2444653126.

Adding to 25011 its reverse (11052), we get a palindrome (36063).

The spelling of 25011 in words is "twenty-five thousand, eleven".