25142505 has 8 divisors (see below), whose sum is σ = 40228032. Its totient is φ = 13409328.

The previous prime is 25142503. The next prime is 25142527. The reversal of 25142505 is 50524152.

It is a happy number.

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

It is not a de Polignac number, because 25142505 - 2¹ = 25142503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25142501) 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, 838069 + ... + 838098.

It is an arithmetic number, because the mean of its divisors is an integer number (5028504).

Almost surely, 2^25142505 is an apocalyptic number.

It is an amenable number.

25142505 is a deficient number, since it is larger than the sum of its proper divisors (15085527).

25142505 is a wasteful number, since it uses less digits than its factorization.

25142505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676175.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 25142505 is about 5014.2302499985. The cubic root of 25142505 is about 292.9563043709.

Adding to 25142505 its reverse (50524152), we get a palindrome (75666657).

The spelling of 25142505 in words is "twenty-five million, one hundred forty-two thousand, five hundred five".