25260415 has 8 divisors (see below), whose sum is σ = 30439728. Its totient is φ = 20123520.

The previous prime is 25260413. The next prime is 25260457. The reversal of 25260415 is 51406252.

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

It is not a de Polignac number, because 25260415 - 2¹ = 25260413 is a prime.

It is a super-5 number, since 5×25260415⁵ (a number of 38 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25260415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25260413) 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, 9277 + ... + 11686.

It is an arithmetic number, because the mean of its divisors is an integer number (3804966).

Almost surely, 2^25260415 is an apocalyptic number.

25260415 is a deficient number, since it is larger than the sum of its proper divisors (5179313).

25260415 is a wasteful number, since it uses less digits than its factorization.

25260415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21209.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25260415 is about 5025.9740349508. The cubic root of 25260415 is about 293.4135462740.

Adding to 25260415 its reverse (51406252), we get a palindrome (76666667).

The spelling of 25260415 in words is "twenty-five million, two hundred sixty thousand, four hundred fifteen".