4055091 has 4 divisors (see below), whose sum is σ = 5406792. Its totient is φ = 2703392.

The previous prime is 4055087. The next prime is 4055137. The reversal of 4055091 is 1905504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4055091 - 2² = 4055087 is a prime.

It is a D-number.

4055091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4055021) 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, 675846 + ... + 675851.

It is an arithmetic number, because the mean of its divisors is an integer number (1351698).

Almost surely, 2^4055091 is an apocalyptic number.

4055091 is a deficient number, since it is larger than the sum of its proper divisors (1351701).

4055091 is a wasteful number, since it uses less digits than its factorization.

4055091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351700.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 4055091 is about 2013.7256516219. The cubic root of 4055091 is about 159.4655474700.

The spelling of 4055091 in words is "four million, fifty-five thousand, ninety-one".