28053055280502 has 128 divisors (see below), whose sum is σ = 74360063232000. Its totient is φ = 7664965469568.

The previous prime is 28053055280501. The next prime is 28053055280581. The reversal of 28053055280502 is 20508255035082.

28053055280502 is a `hidden beast` number, since 28 + 0 + 53 + 0 + 5 + 528 + 0 + 50 + 2 = 666.

It is a super-2 number, since 2×28053055280502² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28053055280501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38913624 + ... + 39627972.

It is an arithmetic number, because the mean of its divisors is an integer number (580937994000).

Almost surely, 2^{28053055280502} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28053055280502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37180031616000).

28053055280502 is an abundant number, since it is smaller than the sum of its proper divisors (46307007951498).

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

28053055280502 is a wasteful number, since it uses less digits than its factorization.

28053055280502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718907 (or 718901 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 28053055280502 in words is "twenty-eight trillion, fifty-three billion, fifty-five million, two hundred eighty thousand, five hundred two".