5540521636 has 48 divisors (see below), whose sum is σ = 10875271680. Its totient is φ = 2452947840.

The previous prime is 5540521631. The next prime is 5540521639. The reversal of 5540521636 is 6361250455.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 5540521595 and 5540521604.

It is not an unprimeable number, because it can be changed into a prime (5540521631) 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, 116325 + ... + 156883.

It is an arithmetic number, because the mean of its divisors is an integer number (226568160).

Almost surely, 2^5540521636 is an apocalyptic number.

It is an amenable number.

5540521636 is a deficient number, since it is larger than the sum of its proper divisors (5334750044).

5540521636 is a wasteful number, since it uses less digits than its factorization.

5540521636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40684 (or 40682 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 5540521636 is about 74434.6803311467. The cubic root of 5540521636 is about 1769.4985797050.

The spelling of 5540521636 in words is "five billion, five hundred forty million, five hundred twenty-one thousand, six hundred thirty-six".