20247795060025 has 81 divisors (see below), whose sum is σ = 27956747042343. Its totient is φ = 14540328316800.

The previous prime is 20247795060001. The next prime is 20247795060037. The reversal of 20247795060025 is 52006059774202.

It is a happy number.

The square root of 20247795060025 is 4499755.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 11684891112489 + 8562903947536 = 3418317^2 + 2926244^2 .

It is not a de Polignac number, because 20247795060025 - 2⁷ = 20247795059897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10821909840 + ... + 10821911710.

Almost surely, 2^{20247795060025} is an apocalyptic number.

20247795060025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20247795060025 is the 4499755-th square number.

20247795060025 is the 2249878-th centered octagonal number.

It is an amenable number.

20247795060025 is a deficient number, since it is larger than the sum of its proper divisors (7708951982318).

20247795060025 is an frugal number, since it uses more digits than its factorization.

20247795060025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

Multiplying 20247795060025 by its sum of digits (49), we get a square (992141957941225 = 31498285²).

The spelling of 20247795060025 in words is "twenty trillion, two hundred forty-seven billion, seven hundred ninety-five million, sixty thousand, twenty-five".