20223315261525 has 24 divisors (see below), whose sum is σ = 33436010677600. Its totient is φ = 10785726383040.

The previous prime is 20223315261521. The next prime is 20223315261529. The reversal of 20223315261525 is 52516251332202.

It is an interprime number because it is at equal distance from previous prime (20223315261521) and next prime (20223315261529).

It is not a de Polignac number, because 20223315261525 - 2² = 20223315261521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223315261521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34895019 + ... + 35469831.

Almost surely, 2^{20223315261525} is an apocalyptic number.

20223315261525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20223315261525 is a deficient number, since it is larger than the sum of its proper divisors (13212695416075).

20223315261525 is a wasteful number, since it uses less digits than its factorization.

20223315261525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043925 (or 1043920 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 20223315261525 its reverse (52516251332202), we get a palindrome (72739566593727).

The spelling of 20223315261525 in words is "twenty trillion, two hundred twenty-three billion, three hundred fifteen million, two hundred sixty-one thousand, five hundred twenty-five".