20223025525 has 24 divisors (see below), whose sum is σ = 25875859464. Its totient is φ = 15668505600.

The previous prime is 20223025481. The next prime is 20223025541. The reversal of 20223025525 is 52552032202.

It can be written as a sum of positive squares in 12 ways, for example, as 12017202129 + 8205823396 = 109623^2 + 90586^2 .

It is not a de Polignac number, because 20223025525 - 2⁷ = 20223025397 is a prime.

It is a super-2 number, since 2×20223025525² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20223025493 and 20223025502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68419 + ... + 212431.

It is an arithmetic number, because the mean of its divisors is an integer number (1078160811).

Almost surely, 2^20223025525 is an apocalyptic number.

20223025525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20223025525 is a deficient number, since it is larger than the sum of its proper divisors (5652833939).

20223025525 is a wasteful number, since it uses less digits than its factorization.

20223025525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144201 (or 144196 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 20223025525 its reverse (52552032202), we get a palindrome (72775057727).

The spelling of 20223025525 in words is "twenty billion, two hundred twenty-three million, twenty-five thousand, five hundred twenty-five".