20025021354 has 32 divisors (see below), whose sum is σ = 43143347520. Its totient is φ = 6159754752.

The previous prime is 20025021307. The next prime is 20025021371. The reversal of 20025021354 is 45312052002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246637 + ... + 317615.

It is an arithmetic number, because the mean of its divisors is an integer number (1348229610).

Almost surely, 2^20025021354 is an apocalyptic number.

20025021354 is an abundant number, since it is smaller than the sum of its proper divisors (23118326166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20025021354 is a wasteful number, since it uses less digits than its factorization.

20025021354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74614.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20025021354 its reverse (45312052002), we get a palindrome (65337073356).

The spelling of 20025021354 in words is "twenty billion, twenty-five million, twenty-one thousand, three hundred fifty-four".