25720041 has 8 divisors (see below), whose sum is σ = 34347040. Its totient is φ = 17119872.

The previous prime is 25720039. The next prime is 25720061. The reversal of 25720041 is 14002752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25720041 - 2¹ = 25720039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25720001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4351 + ... + 8388.

It is an arithmetic number, because the mean of its divisors is an integer number (4293380).

Almost surely, 2^25720041 is an apocalyptic number.

It is an amenable number.

25720041 is a deficient number, since it is larger than the sum of its proper divisors (8626999).

25720041 is a wasteful number, since it uses less digits than its factorization.

25720041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 25720041 is about 5071.4929754462. The cubic root of 25720041 is about 295.1824630081.

Adding to 25720041 its reverse (14002752), we get a palindrome (39722793).

The spelling of 25720041 in words is "twenty-five million, seven hundred twenty thousand, forty-one".