10636420825 has 12 divisors (see below), whose sum is σ = 13190899900. Its totient is φ = 8508015360.

The previous prime is 10636420801. The next prime is 10636420841. The reversal of 10636420825 is 52802463601.

It can be written as a sum of positive squares in 6 ways, for example, as 1209370176 + 9427050649 = 34776^2 + 97093^2 .

It is not a de Polignac number, because 10636420825 - 2⁹ = 10636420313 is a prime.

It is a super-2 number, since 2×10636420825² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202717 + ... + 249733.

Almost surely, 2^10636420825 is an apocalyptic number.

It is an amenable number.

10636420825 is a deficient number, since it is larger than the sum of its proper divisors (2554479075).

10636420825 is an equidigital number, since it uses as much as digits as its factorization.

10636420825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56076 (or 56071 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 10636420825 in words is "ten billion, six hundred thirty-six million, four hundred twenty thousand, eight hundred twenty-five".