25065415 has 4 divisors (see below), whose sum is σ = 30078504. Its totient is φ = 20052328.

The previous prime is 25065413. The next prime is 25065421. The reversal of 25065415 is 51456052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25065415 - 2¹ = 25065413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25065413) 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, 2506537 + ... + 2506546.

It is an arithmetic number, because the mean of its divisors is an integer number (7519626).

Almost surely, 2^25065415 is an apocalyptic number.

25065415 is a deficient number, since it is larger than the sum of its proper divisors (5013089).

25065415 is an equidigital number, since it uses as much as digits as its factorization.

25065415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013088.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 25065415 is about 5006.5372264670. The cubic root of 25065415 is about 292.6565845316.

It can be divided in two parts, 2506 and 5415, that added together give a square (7921 = 89²).

The spelling of 25065415 in words is "twenty-five million, sixty-five thousand, four hundred fifteen".