20413530250250 has 32 divisors (see below), whose sum is σ = 38214772876800. Its totient is φ = 8165274440400.

The previous prime is 20413530250129. The next prime is 20413530250303. The reversal of 20413530250250 is 5205203531402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14872511 + ... + 16186989.

It is an arithmetic number, because the mean of its divisors is an integer number (1194211652400).

Almost surely, 2^{20413530250250} is an apocalyptic number.

20413530250250 is a deficient number, since it is larger than the sum of its proper divisors (17801242626550).

20413530250250 is a wasteful number, since it uses less digits than its factorization.

20413530250250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376615 (or 1376605 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 20413530250250 its reverse (5205203531402), we get a palindrome (25618733781652).

The spelling of 20413530250250 in words is "twenty trillion, four hundred thirteen billion, five hundred thirty million, two hundred fifty thousand, two hundred fifty".