25142734 has 8 divisors (see below), whose sum is σ = 37738080. Its totient is φ = 12563376.

The previous prime is 25142731. The next prime is 25142771. The reversal of 25142734 is 43724152.

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 (25142731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387 + ... + 7225.

It is an arithmetic number, because the mean of its divisors is an integer number (4717260).

Almost surely, 2^25142734 is an apocalyptic number.

25142734 is a deficient number, since it is larger than the sum of its proper divisors (12595346).

25142734 is a wasteful number, since it uses less digits than its factorization.

25142734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7994.

The product of its digits is 6720, while the sum is 28.

The square root of 25142734 is about 5014.2530849569. The cubic root of 25142734 is about 292.9571937915.

Adding to 25142734 its reverse (43724152), we get a palindrome (68866886).

The spelling of 25142734 in words is "twenty-five million, one hundred forty-two thousand, seven hundred thirty-four".