25211242 has 8 divisors (see below), whose sum is σ = 43219296. Its totient is φ = 10804812.

The previous prime is 25211227. The next prime is 25211261. The reversal of 25211242 is 24211252.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900388 + ... + 900415.

It is an arithmetic number, because the mean of its divisors is an integer number (5402412).

Almost surely, 2^25211242 is an apocalyptic number.

25211242 is a deficient number, since it is larger than the sum of its proper divisors (18008054).

25211242 is a wasteful number, since it uses less digits than its factorization.

25211242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800812.

The product of its digits is 320, while the sum is 19.

The square root of 25211242 is about 5021.0797643535. The cubic root of 25211242 is about 293.2230321631.

Adding to 25211242 its reverse (24211252), we get a palindrome (49422494).

The spelling of 25211242 in words is "twenty-five million, two hundred eleven thousand, two hundred forty-two".