2550420 has 48 divisors (see below), whose sum is σ = 7936320. Its totient is φ = 679968.

The previous prime is 2550407. The next prime is 2550437. The reversal of 2550420 is 240552.

2550420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2550393 and 2550402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1822 + ... + 2901.

It is an arithmetic number, because the mean of its divisors is an integer number (165340).

2^2550420 is an apocalyptic number.

2550420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550420 is an abundant number, since it is smaller than the sum of its proper divisors (5385900).

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

2550420 is a wasteful number, since it uses less digits than its factorization.

2550420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2550420 is about 1597.0034439537. The cubic root of 2550420 is about 136.6272210835.

Adding to 2550420 its reverse (240552), we get a palindrome (2790972).

The spelling of 2550420 in words is "two million, five hundred fifty thousand, four hundred twenty".