2578011 has 8 divisors (see below), whose sum is σ = 3445824. Its totient is φ = 1714440.

The previous prime is 2578003. The next prime is 2578019. The reversal of 2578011 is 1108752.

It is an interprime number because it is at equal distance from previous prime (2578003) and next prime (2578019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2578011 - 2³ = 2578003 is a prime.

It is a super-2 number, since 2×2578011² = 13292281432242, which contains 22 as substring.

2578011 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2578019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856 + ... + 2426.

It is an arithmetic number, because the mean of its divisors is an integer number (430728).

2^2578011 is an apocalyptic number.

2578011 is a deficient number, since it is larger than the sum of its proper divisors (867813).

2578011 is a wasteful number, since it uses less digits than its factorization.

2578011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 2578011 is about 1605.6185723888. The cubic root of 2578011 is about 137.1181427129.

The spelling of 2578011 in words is "two million, five hundred seventy-eight thousand, eleven".