25212542 has 8 divisors (see below), whose sum is σ = 39123000. Its totient is φ = 12171544.

The previous prime is 25212541. The next prime is 25212553. The reversal of 25212542 is 24521252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25212541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217292 + ... + 217407.

It is an arithmetic number, because the mean of its divisors is an integer number (4890375).

Almost surely, 2^25212542 is an apocalyptic number.

25212542 is a deficient number, since it is larger than the sum of its proper divisors (13910458).

25212542 is a wasteful number, since it uses less digits than its factorization.

25212542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434730.

The product of its digits is 1600, while the sum is 23.

The square root of 25212542 is about 5021.2092169118. The cubic root of 25212542 is about 293.2280720231.

Adding to 25212542 its reverse (24521252), we get a palindrome (49733794).

The spelling of 25212542 in words is "twenty-five million, two hundred twelve thousand, five hundred forty-two".