2550408 has 128 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 635904.

The previous prime is 2550407. The next prime is 2550437. The reversal of 2550408 is 8040552.

It is a Cunningham number, because it is equal to 1597²-1.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2550403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54241 + ... + 54287.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2^2550408 is an apocalyptic number.

2550408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2550408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4147200).

2550408 is an abundant number, since it is smaller than the sum of its proper divisors (5743992).

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

2550408 is a wasteful number, since it uses less digits than its factorization.

2550408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2550408 is about 1596.9996869129. Note that the first 3 decimals coincide. The cubic root of 2550408 is about 136.6270068013.

It can be divided in two parts, 2550 and 408, that multiplied together give a square (1040400 = 1020²).

The spelling of 2550408 in words is "two million, five hundred fifty thousand, four hundred eight".