205125402 has 8 divisors (see below), whose sum is σ = 410250816. Its totient is φ = 68375132.

The previous prime is 205125379. The next prime is 205125413. The reversal of 205125402 is 204521502.

It is a happy number.

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

205125402 is an admirable number.

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, 17093778 + ... + 17093789.

It is an arithmetic number, because the mean of its divisors is an integer number (51281352).

Almost surely, 2^205125402 is an apocalyptic number.

205125402 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.

205125402 is a wasteful number, since it uses less digits than its factorization.

205125402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34187572.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 205125402 is about 14322.1996215665. The cubic root of 205125402 is about 589.7570597999.

Adding to 205125402 its reverse (204521502), we get a palindrome (409646904).

The spelling of 205125402 in words is "two hundred five million, one hundred twenty-five thousand, four hundred two".