5521878 has 32 divisors (see below), whose sum is σ = 12348000. Its totient is φ = 1829088.

The previous prime is 5521819. The next prime is 5521891. The reversal of 5521878 is 8781255.

It is a super-2 number, since 2×5521878² = 60982273293768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15648 + ... + 15996.

It is an arithmetic number, because the mean of its divisors is an integer number (385875).

Almost surely, 2^5521878 is an apocalyptic number.

5521878 is an abundant number, since it is smaller than the sum of its proper divisors (6826122).

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

5521878 is a wasteful number, since it uses less digits than its factorization.

5521878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 647 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 5521878 is about 2349.8676558479. The cubic root of 5521878 is about 176.7511585089.

The spelling of 5521878 in words is "five million, five hundred twenty-one thousand, eight hundred seventy-eight".