20315100525653 has 16 divisors (see below), whose sum is σ = 20895144806976. Its totient is φ = 19740170741760.

The previous prime is 20315100525647. The next prime is 20315100525661. The reversal of 20315100525653 is 35652500151302.

It is a cyclic number.

It is not a de Polignac number, because 20315100525653 - 2¹⁰ = 20315100524629 is a prime.

It is a super-2 number, since 2×20315100525653² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315100525683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6304550 + ... + 8965352.

It is an arithmetic number, because the mean of its divisors is an integer number (1305946550436).

Almost surely, 2^{20315100525653} is an apocalyptic number.

It is an amenable number.

20315100525653 is a deficient number, since it is larger than the sum of its proper divisors (580044281323).

20315100525653 is a wasteful number, since it uses less digits than its factorization.

20315100525653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661764.

The product of its (nonzero) digits is 135000, while the sum is 38.

Adding to 20315100525653 its reverse (35652500151302), we get a palindrome (55967600676955).

The spelling of 20315100525653 in words is "twenty trillion, three hundred fifteen billion, one hundred million, five hundred twenty-five thousand, six hundred fifty-three".