20425254342 has 16 divisors (see below), whose sum is σ = 41086640880. Its totient is φ = 6769062752.

The previous prime is 20425254323. The next prime is 20425254361. The reversal of 20425254342 is 24345252402.

It is an interprime number because it is at equal distance from previous prime (20425254323) and next prime (20425254361).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9837717 + ... + 9839792.

It is an arithmetic number, because the mean of its divisors is an integer number (2567915055).

Almost surely, 2^20425254342 is an apocalyptic number.

20425254342 is an abundant number, since it is smaller than the sum of its proper divisors (20661386538).

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

20425254342 is a wasteful number, since it uses less digits than its factorization.

20425254342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19677687.

The product of its (nonzero) digits is 76800, while the sum is 33.

The spelling of 20425254342 in words is "twenty billion, four hundred twenty-five million, two hundred fifty-four thousand, three hundred forty-two".