25690002 has 32 divisors (see below), whose sum is σ = 55543488. Its totient is φ = 7874496.

The previous prime is 25689991. The next prime is 25690003. The reversal of 25690002 is 20009652.

It is not an unprimeable number, because it can be changed into a prime (25690003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28653 + ... + 29535.

It is an arithmetic number, because the mean of its divisors is an integer number (1735734).

Almost surely, 2^25690002 is an apocalyptic number.

25690002 is an abundant number, since it is smaller than the sum of its proper divisors (29853486).

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

25690002 is a wasteful number, since it uses less digits than its factorization.

25690002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 25690002 is about 5068.5305562855. The cubic root of 25690002 is about 295.0675015502.

Adding to 25690002 its reverse (20009652), we get a palindrome (45699654).

The spelling of 25690002 in words is "twenty-five million, six hundred ninety thousand, two".