2558620 has 12 divisors (see below), whose sum is σ = 5373144. Its totient is φ = 1023440.

The previous prime is 2558609. The next prime is 2558639. The reversal of 2558620 is 268552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63946 + ... + 63985.

It is an arithmetic number, because the mean of its divisors is an integer number (447762).

2^2558620 is an apocalyptic number.

2558620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2558620 is an abundant number, since it is smaller than the sum of its proper divisors (2814524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2558620 is a wasteful number, since it uses less digits than its factorization.

2558620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127940 (or 127938 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2558620 is about 1599.5686918667. The cubic root of 2558620 is about 136.7734904117.

The spelling of 2558620 in words is "two million, five hundred fifty-eight thousand, six hundred twenty".