25421002 has 8 divisors (see below), whose sum is σ = 38185056. Its totient is φ = 12692652.

The previous prime is 25420979. The next prime is 25421021. The reversal of 25421002 is 20012452.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7068 + ... + 10039.

It is an arithmetic number, because the mean of its divisors is an integer number (4773132).

Almost surely, 2^25421002 is an apocalyptic number.

25421002 is a deficient number, since it is larger than the sum of its proper divisors (12764054).

25421002 is a wasteful number, since it uses less digits than its factorization.

25421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17852.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 25421002 is about 5041.9244341819. The cubic root of 25421002 is about 294.0340019600.

Adding to 25421002 its reverse (20012452), we get a palindrome (45433454).

The spelling of 25421002 in words is "twenty-five million, four hundred twenty-one thousand, two".