25059145 has 4 divisors (see below), whose sum is σ = 30070980. Its totient is φ = 20047312.

The previous prime is 25059143. The next prime is 25059163. The reversal of 25059145 is 54195052.

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 15768841 + 9290304 = 3971^2 + 3048^2 .

It is a cyclic number.

It is not a de Polignac number, because 25059145 - 2¹ = 25059143 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (25059143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505910 + ... + 2505919.

It is an arithmetic number, because the mean of its divisors is an integer number (7517745).

Almost surely, 2^25059145 is an apocalyptic number.

It is an amenable number.

25059145 is a deficient number, since it is larger than the sum of its proper divisors (5011835).

25059145 is an equidigital number, since it uses as much as digits as its factorization.

25059145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011834.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 25059145 is about 5005.9110060008. The cubic root of 25059145 is about 292.6321802570.

It can be divided in two parts, 250 and 59145, that added together give a palindrome (59395).

The spelling of 25059145 in words is "twenty-five million, fifty-nine thousand, one hundred forty-five".