28025280055 has 8 divisors (see below), whose sum is σ = 33652602144. Its totient is φ = 22405380000.

The previous prime is 28025280053. The next prime is 28025280067. The reversal of 28025280055 is 55008252082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28025280055 - 2¹ = 28025280053 is a prime.

It is a super-2 number, since 2×28025280055² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28025279996 and 28025280023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28025280053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847196 + ... + 1862305.

It is an arithmetic number, because the mean of its divisors is an integer number (4206575268).

Almost surely, 2^28025280055 is an apocalyptic number.

28025280055 is a deficient number, since it is larger than the sum of its proper divisors (5627322089).

28025280055 is a wasteful number, since it uses less digits than its factorization.

28025280055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711017.

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 28025280055 in words is "twenty-eight billion, twenty-five million, two hundred eighty thousand, fifty-five".