25715006 has 4 divisors (see below), whose sum is σ = 38572512. Its totient is φ = 12857502.

The previous prime is 25714981. The next prime is 25715009. The reversal of 25715006 is 60051752.

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

It is a super-2 number, since 2×25715006² = 1322523067160072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428750 + ... + 6428753.

It is an arithmetic number, because the mean of its divisors is an integer number (9643128).

Almost surely, 2^25715006 is an apocalyptic number.

25715006 is a deficient number, since it is larger than the sum of its proper divisors (12857506).

25715006 is a wasteful number, since it uses less digits than its factorization.

25715006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12857505.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 25715006 is about 5070.9965490030. The cubic root of 25715006 is about 295.1631999401.

Adding to 25715006 its reverse (60051752), we get a palindrome (85766758).

The spelling of 25715006 in words is "twenty-five million, seven hundred fifteen thousand, six".