20755281052 has 24 divisors (see below), whose sum is σ = 41346490752. Its totient is φ = 9024034800.

The previous prime is 20755281037. The next prime is 20755281097. The reversal of 20755281052 is 25018255702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10253574 + ... + 10255597.

It is an arithmetic number, because the mean of its divisors is an integer number (1722770448).

Almost surely, 2^20755281052 is an apocalyptic number.

20755281052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20755281052 is a deficient number, since it is larger than the sum of its proper divisors (20591209700).

20755281052 is a wasteful number, since it uses less digits than its factorization.

20755281052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20509209 (or 20509207 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

The spelling of 20755281052 in words is "twenty billion, seven hundred fifty-five million, two hundred eighty-one thousand, fifty-two".