20136542653325 has 24 divisors (see below), whose sum is σ = 28798159061760. Its totient is φ = 13681236830400.

The previous prime is 20136542653321. The next prime is 20136542653421. The reversal of 20136542653325 is 52335624563102.

It is a happy number.

It is not a de Polignac number, because 20136542653325 - 2² = 20136542653321 is a prime.

It is a super-2 number, since 2×20136542653325² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20136542653325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136542653321) 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, 527806421 + ... + 527844570.

It is an arithmetic number, because the mean of its divisors is an integer number (1199923294240).

Almost surely, 2^{20136542653325} is an apocalyptic number.

20136542653325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20136542653325 is a deficient number, since it is larger than the sum of its proper divisors (8661616408435).

20136542653325 is a wasteful number, since it uses less digits than its factorization.

20136542653325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055651117 (or 1055651112 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 20136542653325 in words is "twenty trillion, one hundred thirty-six billion, five hundred forty-two million, six hundred fifty-three thousand, three hundred twenty-five".