20540364253125 has 24 divisors (see below), whose sum is σ = 34231749465312. Its totient is φ = 10954860930000.

The previous prime is 20540364253117. The next prime is 20540364253127. The reversal of 20540364253125 is 52135246304502.

It is not a de Polignac number, because 20540364253125 - 2³ = 20540364253117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540364253127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1095476719 + ... + 1095495468.

It is an arithmetic number, because the mean of its divisors is an integer number (1426322894388).

Almost surely, 2^{20540364253125} is an apocalyptic number.

20540364253125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20540364253125 is a deficient number, since it is larger than the sum of its proper divisors (13691385212187).

20540364253125 is an frugal number, since it uses more digits than its factorization.

20540364253125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190972215 (or 2190972195 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 20540364253125 in words is "twenty trillion, five hundred forty billion, three hundred sixty-four million, two hundred fifty-three thousand, one hundred twenty-five".