20763369025 has 81 divisors (see below), whose sum is σ = 31484782371. Its totient is φ = 13542624480.

The previous prime is 20763369013. The next prime is 20763369037. The reversal of 20763369025 is 52096336702.

The square root of 20763369025 is 144095.

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

It is an interprime number because it is at equal distance from previous prime (20763369013) and next prime (20763369037).

It can be written as a sum of positive squares in only one way, i.e., 7474812849 + 13288556176 = 86457^2 + 115276^2 .

It is not a de Polignac number, because 20763369025 - 2⁵ = 20763368993 is a prime.

It is a super-2 number, since 2×20763369025² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 115996386 + ... + 115996564.

Almost surely, 2^20763369025 is an apocalyptic number.

20763369025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20763369025 is the 144095-th square number.

20763369025 is the 72048-th centered octagonal number.

It is an amenable number.

20763369025 is a deficient number, since it is larger than the sum of its proper divisors (10721413346).

20763369025 is an equidigital number, since it uses as much as digits as its factorization.

20763369025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 20763369025 in words is "twenty billion, seven hundred sixty-three million, three hundred sixty-nine thousand, twenty-five".