25552002 has 32 divisors (see below), whose sum is σ = 58770432. Its totient is φ = 7254864.

The previous prime is 25551961. The next prime is 25552013. The reversal of 25552002 is 20025552.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 25552002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5193 + ... + 8835.

It is an arithmetic number, because the mean of its divisors is an integer number (1836576).

Almost surely, 2^25552002 is an apocalyptic number.

25552002 is an abundant number, since it is smaller than the sum of its proper divisors (33218430).

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

25552002 is a wasteful number, since it uses less digits than its factorization.

25552002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 25552002 is about 5054.8988120436. The cubic root of 25552002 is about 294.5382107549.

Adding to 25552002 its reverse (20025552), we get a palindrome (45577554).

The spelling of 25552002 in words is "twenty-five million, five hundred fifty-two thousand, two".