20425426254 has 24 divisors (see below), whose sum is σ = 46858331520. Its totient is φ = 6407976768.

The previous prime is 20425426211. The next prime is 20425426261. The reversal of 20425426254 is 45262452402.

20425426254 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 542 + 62 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33374574 + ... + 33375185.

It is an arithmetic number, because the mean of its divisors is an integer number (1952430480).

Almost surely, 2^20425426254 is an apocalyptic number.

20425426254 is an abundant number, since it is smaller than the sum of its proper divisors (26432905266).

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

20425426254 is a wasteful number, since it uses less digits than its factorization.

20425426254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66749784 (or 66749781 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 20425426254 its reverse (45262452402), we get a palindrome (65687878656).

The spelling of 20425426254 in words is "twenty billion, four hundred twenty-five million, four hundred twenty-six thousand, two hundred fifty-four".