2067551 has 4 divisors (see below), whose sum is σ = 2070600. Its totient is φ = 2064504.

The previous prime is 2067547. The next prime is 2067581. The reversal of 2067551 is 1557602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2067551 - 2² = 2067547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2067551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2067511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 2033.

It is an arithmetic number, because the mean of its divisors is an integer number (517650).

2^2067551 is an apocalyptic number.

2067551 is a deficient number, since it is larger than the sum of its proper divisors (3049).

2067551 is a wasteful number, since it uses less digits than its factorization.

2067551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 2067551 is about 1437.8981187831. The cubic root of 2067551 is about 127.3949102013.

The spelling of 2067551 in words is "two million, sixty-seven thousand, five hundred fifty-one".