2051558 has 16 divisors (see below), whose sum is σ = 3193344. Its totient is φ = 987840.

The previous prime is 2051537. The next prime is 2051587. The reversal of 2051558 is 8551502.

It is a congruent number.

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, 10316 + ... + 10512.

It is an arithmetic number, because the mean of its divisors is an integer number (199584).

2^2051558 is an apocalyptic number.

2051558 is a deficient number, since it is larger than the sum of its proper divisors (1141786).

2051558 is a wasteful number, since it uses less digits than its factorization.

2051558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2051558 is about 1432.3260801926. The cubic root of 2051558 is about 127.0655829250.

The spelling of 2051558 in words is "two million, fifty-one thousand, five hundred fifty-eight".