5540363025581 has 16 divisors (see below), whose sum is σ = 5646697405440. Its totient is φ = 5435022181680.

The previous prime is 5540363025559. The next prime is 5540363025629. The reversal of 5540363025581 is 1855203630455.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5540363025581 - 2²² = 5540358831277 is a prime.

It is a super-2 number, since 2×5540363025581² (a number of 26 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 (5540363025181) 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, 9501590 + ... + 10067816.

It is an arithmetic number, because the mean of its divisors is an integer number (352918587840).

Almost surely, 2^{5540363025581} is an apocalyptic number.

It is an amenable number.

5540363025581 is a deficient number, since it is larger than the sum of its proper divisors (106334379859).

5540363025581 is a wasteful number, since it uses less digits than its factorization.

5540363025581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567104.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 5540363025581 in words is "five trillion, five hundred forty billion, three hundred sixty-three million, twenty-five thousand, five hundred eighty-one".