20253125387 has 8 divisors (see below), whose sum is σ = 23054941440. Its totient is φ = 17611413160.

The previous prime is 20253125383. The next prime is 20253125419. The reversal of 20253125387 is 78352135202.

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

It is not a de Polignac number, because 20253125387 - 2² = 20253125383 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 20253125387.

It is not an unprimeable number, because it can be changed into a prime (20253125383) 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, 40025687 + ... + 40026192.

It is an arithmetic number, because the mean of its divisors is an integer number (2881867680).

Almost surely, 2^20253125387 is an apocalyptic number.

20253125387 is a deficient number, since it is larger than the sum of its proper divisors (2801816053).

20253125387 is a wasteful number, since it uses less digits than its factorization.

20253125387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80051913.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 20253125387 in words is "twenty billion, two hundred fifty-three million, one hundred twenty-five thousand, three hundred eighty-seven".