2555320 has 32 divisors (see below), whose sum is σ = 5796720. Its totient is φ = 1013760.

The previous prime is 2555317. The next prime is 2555347. The reversal of 2555320 is 235552.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2555291 and 2555300.

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, 7555 + ... + 7885.

2^2555320 is an apocalyptic number.

2555320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555320 is an abundant number, since it is smaller than the sum of its proper divisors (3241400).

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

2555320 is a wasteful number, since it uses less digits than its factorization.

2555320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 2555320 is about 1598.5368309801. The cubic root of 2555320 is about 136.7146635568.

The spelling of 2555320 in words is "two million, five hundred fifty-five thousand, three hundred twenty".