25723142 has 8 divisors (see below), whose sum is σ = 40854456. Its totient is φ = 12104992.

The previous prime is 25723141. The next prime is 25723153. The reversal of 25723142 is 24132752.

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

It is a super-4 number, since 4×25723142⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25723141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378248 + ... + 378315.

It is an arithmetic number, because the mean of its divisors is an integer number (5106807).

Almost surely, 2^25723142 is an apocalyptic number.

25723142 is a deficient number, since it is larger than the sum of its proper divisors (15131314).

25723142 is a wasteful number, since it uses less digits than its factorization.

25723142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756582.

The product of its digits is 3360, while the sum is 26.

The square root of 25723142 is about 5071.7986947433. The cubic root of 25723142 is about 295.1943256646.

Adding to 25723142 its reverse (24132752), we get a palindrome (49855894).

The spelling of 25723142 in words is "twenty-five million, seven hundred twenty-three thousand, one hundred forty-two".