2125558 has 4 divisors (see below), whose sum is σ = 3188340. Its totient is φ = 1062778.

The previous prime is 2125553. The next prime is 2125559. The reversal of 2125558 is 8555212.

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

It is a super-3 number, since 3×2125558³ = 28809792799107723336, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531388 + ... + 531391.

It is an arithmetic number, because the mean of its divisors is an integer number (797085).

2^2125558 is an apocalyptic number.

2125558 is a deficient number, since it is larger than the sum of its proper divisors (1062782).

2125558 is a wasteful number, since it uses less digits than its factorization.

2125558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062781.

The product of its digits is 4000, while the sum is 28.

The square root of 2125558 is about 1457.9293535696. The cubic root of 2125558 is about 128.5753316863.

The spelling of 2125558 in words is "two million, one hundred twenty-five thousand, five hundred fifty-eight".