20310452643025 has 12 divisors (see below), whose sum is σ = 25434317332764. Its totient is φ = 16087487240000.

The previous prime is 20310452643023. The next prime is 20310452643071. The reversal of 20310452643025 is 52034625401302.

It can be written as a sum of positive squares in 6 ways, for example, as 32507008209 + 20277945634816 = 180297^2 + 4503104^2 .

It is not a de Polignac number, because 20310452643025 - 2¹ = 20310452643023 is a prime.

It is a super-2 number, since 2×20310452643025² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310452643023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4021869286 + ... + 4021874335.

It is an arithmetic number, because the mean of its divisors is an integer number (2119526444397).

Almost surely, 2^{20310452643025} is an apocalyptic number.

20310452643025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20310452643025 is a deficient number, since it is larger than the sum of its proper divisors (5123864689739).

20310452643025 is a wasteful number, since it uses less digits than its factorization.

20310452643025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8043743732 (or 8043743727 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 20310452643025 in words is "twenty trillion, three hundred ten billion, four hundred fifty-two million, six hundred forty-three thousand, twenty-five".