20540454525 has 96 divisors (see below), whose sum is σ = 38173449600. Its totient is φ = 10827993600.

The previous prime is 20540454499. The next prime is 20540454541. The reversal of 20540454525 is 52545404502.

20540454525 is a `hidden beast` number, since 20 + 540 + 45 + 4 + 52 + 5 = 666.

It is not a de Polignac number, because 20540454525 - 2⁷ = 20540454397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20540454525.

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 95 ways as a sum of consecutive naturals, for example, 35972490 + ... + 35973060.

It is an arithmetic number, because the mean of its divisors is an integer number (397640100).

Almost surely, 2^20540454525 is an apocalyptic number.

20540454525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20540454525 is a deficient number, since it is larger than the sum of its proper divisors (17632995075).

20540454525 is a wasteful number, since it uses less digits than its factorization.

20540454525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 20540454525 in words is "twenty billion, five hundred forty million, four hundred fifty-four thousand, five hundred twenty-five".