20250320513 has 8 divisors (see below), whose sum is σ = 20532980160. Its totient is φ = 19969422480.

The previous prime is 20250320473. The next prime is 20250320539. The reversal of 20250320513 is 31502305202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20250320513 - 2⁶ = 20250320449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20250320413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417245 + ... + 463242.

It is an arithmetic number, because the mean of its divisors is an integer number (2566622520).

Almost surely, 2^20250320513 is an apocalyptic number.

It is an amenable number.

20250320513 is a deficient number, since it is larger than the sum of its proper divisors (282659647).

20250320513 is a wasteful number, since it uses less digits than its factorization.

20250320513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880807.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 20250320513 its reverse (31502305202), we get a palindrome (51752625715).

The spelling of 20250320513 in words is "twenty billion, two hundred fifty million, three hundred twenty thousand, five hundred thirteen".