20425005154 has 32 divisors (see below), whose sum is σ = 31948162560. Its totient is φ = 9782572800.

The previous prime is 20425005127. The next prime is 20425005157. The reversal of 20425005154 is 45150052402.

It is not an unprimeable number, because it can be changed into a prime (20425005157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7137684 + ... + 7140544.

It is an arithmetic number, because the mean of its divisors is an integer number (998380080).

Almost surely, 2^20425005154 is an apocalyptic number.

20425005154 is a deficient number, since it is larger than the sum of its proper divisors (11523157406).

20425005154 is a wasteful number, since it uses less digits than its factorization.

20425005154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 20425005154 its reverse (45150052402), we get a palindrome (65575057556).

The spelling of 20425005154 in words is "twenty billion, four hundred twenty-five million, five thousand, one hundred fifty-four".