7066554 has 16 divisors (see below), whose sum is σ = 15418080. Its totient is φ = 2141360.

The previous prime is 7066541. The next prime is 7066561. The reversal of 7066554 is 4556607.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53469 + ... + 53600.

It is an arithmetic number, because the mean of its divisors is an integer number (963630).

Almost surely, 2^7066554 is an apocalyptic number.

7066554 is an abundant number, since it is smaller than the sum of its proper divisors (8351526).

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

7066554 is a wasteful number, since it uses less digits than its factorization.

7066554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107085.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 7066554 is about 2658.2990802391. The cubic root of 7066554 is about 191.8974604384.

It can be divided in two parts, 706 and 6554, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 7066554 in words is "seven million, sixty-six thousand, five hundred fifty-four".