10203620225525 has 6 divisors (see below), whose sum is σ = 12652489079682. Its totient is φ = 8162896180400.

The previous prime is 10203620225521. The next prime is 10203620225551. The reversal of 10203620225525 is 52552202630201.

It can be written as a sum of positive squares in 3 ways, for example, as 340842289489 + 9862777936036 = 583817^2 + 3140506^2 .

It is not a de Polignac number, because 10203620225525 - 2² = 10203620225521 is a prime.

It is a super-2 number, since 2×10203620225525² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203620225521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204072404486 + ... + 204072404535.

It is an arithmetic number, because the mean of its divisors is an integer number (2108748179947).

Almost surely, 2^{10203620225525} is an apocalyptic number.

It is an amenable number.

10203620225525 is a deficient number, since it is larger than the sum of its proper divisors (2448868854157).

10203620225525 is an equidigital number, since it uses as much as digits as its factorization.

10203620225525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408144809031 (or 408144809026 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 10203620225525 its reverse (52552202630201), we get a palindrome (62755822855726).

The spelling of 10203620225525 in words is "ten trillion, two hundred three billion, six hundred twenty million, two hundred twenty-five thousand, five hundred twenty-five".