25262505 has 12 divisors (see below), whose sum is σ = 43788420. Its totient is φ = 13473312.

The previous prime is 25262491. The next prime is 25262513. The reversal of 25262505 is 50526252.

It can be written as a sum of positive squares in 2 ways, for example, as 5308416 + 19954089 = 2304^2 + 4467^2 .

It is not a de Polignac number, because 25262505 - 2⁵ = 25262473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280650 + ... + 280739.

It is an arithmetic number, because the mean of its divisors is an integer number (3649035).

Almost surely, 2^25262505 is an apocalyptic number.

It is an amenable number.

25262505 is a deficient number, since it is larger than the sum of its proper divisors (18525915).

25262505 is a wasteful number, since it uses less digits than its factorization.

25262505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561400 (or 561397 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 25262505 is about 5026.1819505466. The cubic root of 25262505 is about 293.4216382155.

Adding to 25262505 its reverse (50526252), we get a palindrome (75788757).

The spelling of 25262505 in words is "twenty-five million, two hundred sixty-two thousand, five hundred five".