25813002 has 8 divisors (see below), whose sum is σ = 51626016. Its totient is φ = 8604332.

The previous prime is 25812991. The next prime is 25813009. The reversal of 25813002 is 20031852.

It is a sphenic number, since it is the product of 3 distinct primes.

25813002 is an admirable number.

It is a super-2 number, since 2×25813002² = 1332622144504008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25813002.

It is not an unprimeable number, because it can be changed into a prime (25813009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2151078 + ... + 2151089.

It is an arithmetic number, because the mean of its divisors is an integer number (6453252).

Almost surely, 2^25813002 is an apocalyptic number.

25813002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25813002 is a wasteful number, since it uses less digits than its factorization.

25813002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302172.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25813002 is about 5080.6497615955. The cubic root of 25813002 is about 295.5376654414.

Adding to 25813002 its reverse (20031852), we get a palindrome (45844854).

The spelling of 25813002 in words is "twenty-five million, eight hundred thirteen thousand, two".