20250025510523 has 4 divisors (see below), whose sum is σ = 20363154144840. Its totient is φ = 20136896876208.

The previous prime is 20250025510487. The next prime is 20250025510531. The reversal of 20250025510523 is 32501552005202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20250025510523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20250025510523.

It is not an unprimeable number, because it can be changed into a prime (20250025510543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56564316890 + ... + 56564317247.

It is an arithmetic number, because the mean of its divisors is an integer number (5090788536210).

Almost surely, 2^{20250025510523} is an apocalyptic number.

20250025510523 is a deficient number, since it is larger than the sum of its proper divisors (113128634317).

20250025510523 is a wasteful number, since it uses less digits than its factorization.

20250025510523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113128634316.

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 20250025510523 its reverse (32501552005202), we get a palindrome (52751577515725).

The spelling of 20250025510523 in words is "twenty trillion, two hundred fifty billion, twenty-five million, five hundred ten thousand, five hundred twenty-three".