20210513041055 has 8 divisors (see below), whose sum is σ = 25088912740800. Its totient is φ = 15610879038496.

The previous prime is 20210513041021. The next prime is 20210513041057. The reversal of 20210513041055 is 55014031501202.

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 20210513041055 - 2¹⁴ = 20210513024671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210513041057) 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, 69691424135 + ... + 69691424424.

It is an arithmetic number, because the mean of its divisors is an integer number (3136114092600).

Almost surely, 2^{20210513041055} is an apocalyptic number.

20210513041055 is a deficient number, since it is larger than the sum of its proper divisors (4878399699745).

20210513041055 is a wasteful number, since it uses less digits than its factorization.

20210513041055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139382848593.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 20210513041055 its reverse (55014031501202), we get a palindrome (75224544542257).

The spelling of 20210513041055 in words is "twenty trillion, two hundred ten billion, five hundred thirteen million, forty-one thousand, fifty-five".