25415045 has 8 divisors (see below), whose sum is σ = 30608280. Its totient is φ = 20258560.

The previous prime is 25415029. The next prime is 25415053. The reversal of 25415045 is 54051452.

It can be written as a sum of positive squares in 4 ways, for example, as 9431041 + 15984004 = 3071^2 + 3998^2 .

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

It is not a de Polignac number, because 25415045 - 2⁴ = 25415029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7640 + ... + 10449.

It is an arithmetic number, because the mean of its divisors is an integer number (3826035).

Almost surely, 2^25415045 is an apocalyptic number.

It is an amenable number.

25415045 is a deficient number, since it is larger than the sum of its proper divisors (5193235).

25415045 is a wasteful number, since it uses less digits than its factorization.

25415045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18375.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 25415045 is about 5041.3336529137. Note that the first 3 decimals coincide. The cubic root of 25415045 is about 294.0110327974.

Adding to 25415045 its reverse (54051452), we get a palindrome (79466497).

The spelling of 25415045 in words is "twenty-five million, four hundred fifteen thousand, forty-five".