25052505 has 32 divisors (see below), whose sum is σ = 41174784. Its totient is φ = 13003776.

The previous prime is 25052483. The next prime is 25052513. The reversal of 25052505 is 50525052.

It is not a de Polignac number, because 25052505 - 2⁸ = 25052249 is a prime.

It is a super-3 number, since 3×25052505³ (a number of 23 digits) contains 333 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149932 + ... + 150098.

It is an arithmetic number, because the mean of its divisors is an integer number (1286712).

Almost surely, 2^25052505 is an apocalyptic number.

It is an amenable number.

25052505 is a deficient number, since it is larger than the sum of its proper divisors (16122279).

25052505 is a wasteful number, since it uses less digits than its factorization.

25052505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 25052505 is about 5005.2477461161. The cubic root of 25052505 is about 292.6063314192.

Adding to 25052505 its reverse (50525052), we get a palindrome (75577557).

The spelling of 25052505 in words is "twenty-five million, fifty-two thousand, five hundred five".