25530006 has 16 divisors (see below), whose sum is σ = 51634800. Its totient is φ = 8414208.

The previous prime is 25529993. The next prime is 25530007. The reversal of 25530006 is 60003552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23371 + ... + 24438.

It is an arithmetic number, because the mean of its divisors is an integer number (3227175).

Almost surely, 2^25530006 is an apocalyptic number.

25530006 is an abundant number, since it is smaller than the sum of its proper divisors (26104794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25530006 is a wasteful number, since it uses less digits than its factorization.

25530006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47903.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 25530006 is about 5052.7226324032. The cubic root of 25530006 is about 294.4536704465.

Adding to 25530006 its reverse (60003552), we get a palindrome (85533558).

The spelling of 25530006 in words is "twenty-five million, five hundred thirty thousand, six".