20025455555004 has 24 divisors (see below), whose sum is σ = 47865723035088. Its totient is φ = 6512343269760.

The previous prime is 20025455554999. The next prime is 20025455555081. The reversal of 20025455555004 is 40055555452002.

It is a happy number.

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, 20351072227 + ... + 20351073210.

It is an arithmetic number, because the mean of its divisors is an integer number (1994405126462).

Almost surely, 2^{20025455555004} is an apocalyptic number.

It is an amenable number.

20025455555004 is an abundant number, since it is smaller than the sum of its proper divisors (27840267480084).

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

20025455555004 is a wasteful number, since it uses less digits than its factorization.

20025455555004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40702145485 (or 40702145483 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 42.

The spelling of 20025455555004 in words is "twenty trillion, twenty-five billion, four hundred fifty-five million, five hundred fifty-five thousand, four".