10206424220525 has 72 divisors (see below), whose sum is σ = 14562942771384. Its totient is φ = 7068072960000.

The previous prime is 10206424220519. The next prime is 10206424220563. The reversal of 10206424220525 is 52502242460201.

It is a happy number.

It can be written as a sum of positive squares in 36 ways, for example, as 8067980095561 + 2138444124964 = 2840419^2 + 1462342^2 .

It is not a de Polignac number, because 10206424220525 - 2⁸ = 10206424220269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19639025 + ... + 20152025.

It is an arithmetic number, because the mean of its divisors is an integer number (202263094047).

Almost surely, 2^{10206424220525} is an apocalyptic number.

It is an amenable number.

10206424220525 is a deficient number, since it is larger than the sum of its proper divisors (4356518550859).

10206424220525 is a wasteful number, since it uses less digits than its factorization.

10206424220525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513331 (or 513313 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 10206424220525 its reverse (52502242460201), we get a palindrome (62708666680726).

The spelling of 10206424220525 in words is "ten trillion, two hundred six billion, four hundred twenty-four million, two hundred twenty thousand, five hundred twenty-five".