20053012555501 has 8 divisors (see below), whose sum is σ = 21964760203320. Its totient is φ = 18222615871488.

The previous prime is 20053012555481. The next prime is 20053012555519. The reversal of 20053012555501 is 10555521035002.

It can be written as a sum of positive squares in 4 ways, for example, as 7334509732900 + 12718502822601 = 2708230^2 + 3566301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20053012555501 - 2⁵ = 20053012555469 is a prime.

It is a super-2 number, since 2×20053012555501² (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 (20053012555571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20337740436 + ... + 20337741421.

It is an arithmetic number, because the mean of its divisors is an integer number (2745595025415).

Almost surely, 2^{20053012555501} is an apocalyptic number.

It is an amenable number.

20053012555501 is a deficient number, since it is larger than the sum of its proper divisors (1911747647819).

20053012555501 is a wasteful number, since it uses less digits than its factorization.

20053012555501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40675481903.

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 20053012555501 in words is "twenty trillion, fifty-three billion, twelve million, five hundred fifty-five thousand, five hundred one".