20025447514 has 4 divisors (see below), whose sum is σ = 30038171274. Its totient is φ = 10012723756.

The previous prime is 20025447493. The next prime is 20025447583. The reversal of 20025447514 is 41574452002.

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

It can be written as a sum of positive squares in only one way, i.e., 18274443489 + 1751004025 = 135183^2 + 41845^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20025447514.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006361877 + ... + 5006361880.

Almost surely, 2^20025447514 is an apocalyptic number.

20025447514 is a deficient number, since it is larger than the sum of its proper divisors (10012723760).

20025447514 is a wasteful number, since it uses less digits than its factorization.

20025447514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012723759.

The product of its (nonzero) digits is 44800, while the sum is 34.

Adding to 20025447514 its reverse (41574452002), we get a palindrome (61599899516).

The spelling of 20025447514 in words is "twenty billion, twenty-five million, four hundred forty-seven thousand, five hundred fourteen".