25400006 has 16 divisors (see below), whose sum is σ = 40738464. Its totient is φ = 11835264.

The previous prime is 25400003. The next prime is 25400009. The reversal of 25400006 is 60000452.

It is an interprime number because it is at equal distance from previous prime (25400003) and next prime (25400009).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25400003) 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 in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 7128.

It is an arithmetic number, because the mean of its divisors is an integer number (2546154).

Almost surely, 2^25400006 is an apocalyptic number.

25400006 is a deficient number, since it is larger than the sum of its proper divisors (15338458).

25400006 is a wasteful number, since it uses less digits than its factorization.

25400006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7375.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25400006 is about 5039.8418625985. The cubic root of 25400006 is about 293.9530290395.

Adding to 25400006 its reverse (60000452), we get a palindrome (85400458).

The spelling of 25400006 in words is "twenty-five million, four hundred thousand, six".