25144006 has 4 divisors (see below), whose sum is σ = 37716012. Its totient is φ = 12572002.

The previous prime is 25143931. The next prime is 25144019. The reversal of 25144006 is 60044152.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286000 + ... + 6286003.

It is an arithmetic number, because the mean of its divisors is an integer number (9429003).

Almost surely, 2^25144006 is an apocalyptic number.

25144006 is a deficient number, since it is larger than the sum of its proper divisors (12572006).

25144006 is a wasteful number, since it uses less digits than its factorization.

25144006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12572005.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 25144006 is about 5014.3799217849. The cubic root of 25144006 is about 292.9621340560.

Adding to 25144006 its reverse (60044152), we get a palindrome (85188158).

The spelling of 25144006 in words is "twenty-five million, one hundred forty-four thousand, six".