2550401 has 24 divisors (see below), whose sum is σ = 3239424. Its totient is φ = 1995840.

The previous prime is 2550367. The next prime is 2550403. The reversal of 2550401 is 1040552.

It is not a de Polignac number, because 2550401 - 2⁶ = 2550337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2550401.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 34901 + ... + 34973.

It is an arithmetic number, because the mean of its divisors is an integer number (134976).

2^2550401 is an apocalyptic number.

It is an amenable number.

2550401 is a deficient number, since it is larger than the sum of its proper divisors (689023).

2550401 is a wasteful number, since it uses less digits than its factorization.

2550401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2550401 is about 1596.9974953017. The cubic root of 2550401 is about 136.6268818030.

Adding to 2550401 its reverse (1040552), we get a palindrome (3590953).

The spelling of 2550401 in words is "two million, five hundred fifty thousand, four hundred one".