5521518 has 24 divisors (see below), whose sum is σ = 12484368. Its totient is φ = 1760352.

The previous prime is 5521499. The next prime is 5521543. The reversal of 5521518 is 8151255.

It is a super-2 number, since 2×5521518² = 60974322048648, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

5521518 is a modest number, since divided by 1518 gives 552 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 5521491 and 5521500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6255 + ... + 7082.

It is an arithmetic number, because the mean of its divisors is an integer number (520182).

Almost surely, 2^5521518 is an apocalyptic number.

5521518 is an abundant number, since it is smaller than the sum of its proper divisors (6962850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5521518 is a wasteful number, since it uses less digits than its factorization.

5521518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368 (or 13365 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 5521518 is about 2349.7910545408. The cubic root of 5521518 is about 176.7473173158.

The spelling of 5521518 in words is "five million, five hundred twenty-one thousand, five hundred eighteen".