25145105 has 8 divisors (see below), whose sum is σ = 30240000. Its totient is φ = 20072176.

The previous prime is 25145053. The next prime is 25145129. The reversal of 25145105 is 50154152.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25145105 - 2¹⁰ = 25144081 is a prime.

It is a super-2 number, since 2×25145105² = 1264552610922050, which contains 22 as substring.

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, 2855 + ... + 7644.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^25145105 is an apocalyptic number.

It is an amenable number.

25145105 is a deficient number, since it is larger than the sum of its proper divisors (5094895).

25145105 is a wasteful number, since it uses less digits than its factorization.

25145105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10983.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 25145105 is about 5014.4895054233. The cubic root of 25145105 is about 292.9664022793.

Adding to 25145105 its reverse (50154152), we get a palindrome (75299257).

The spelling of 25145105 in words is "twenty-five million, one hundred forty-five thousand, one hundred five".