2010000255521 has 16 divisors (see below), whose sum is σ = 2054236444560. Its totient is φ = 1966154599680.

The previous prime is 2010000255517. The next prime is 2010000255583. The reversal of 2010000255521 is 1255520000102.

It can be written as a sum of positive squares in 8 ways, for example, as 639136291600 + 1370863963921 = 799460^2 + 1170839^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010000255521 - 2² = 2010000255517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010000255421) 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, 9029855 + ... + 9249771.

It is an arithmetic number, because the mean of its divisors is an integer number (128389777785).

Almost surely, 2^{2010000255521} is an apocalyptic number.

It is an amenable number.

2010000255521 is a deficient number, since it is larger than the sum of its proper divisors (44236189039).

2010000255521 is a wasteful number, since it uses less digits than its factorization.

2010000255521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220804.

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 2010000255521 its reverse (1255520000102), we get a palindrome (3265520255623).

The spelling of 2010000255521 in words is "two trillion, ten billion, two hundred fifty-five thousand, five hundred twenty-one".