280055505525 has 24 divisors (see below), whose sum is σ = 465797728704. Its totient is φ = 148468540800.

The previous prime is 280055505491. The next prime is 280055505533. The reversal of 280055505525 is 525505550082.

It is not a de Polignac number, because 280055505525 - 2¹¹ = 280055503477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11167336 + ... + 11192385.

It is an arithmetic number, because the mean of its divisors is an integer number (19408238696).

Almost surely, 2^280055505525 is an apocalyptic number.

280055505525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

280055505525 is a deficient number, since it is larger than the sum of its proper divisors (185742223179).

280055505525 is a wasteful number, since it uses less digits than its factorization.

280055505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22359901 (or 22359896 counting only the distinct ones).

The product of its (nonzero) digits is 500000, while the sum is 42.

The spelling of 280055505525 in words is "two hundred eighty billion, fifty-five million, five hundred five thousand, five hundred twenty-five".