2551246 has 8 divisors (see below), whose sum is σ = 3958920. Its totient is φ = 1231608.

The previous prime is 2551223. The next prime is 2551247. The reversal of 2551246 is 6421552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2551246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21936 + ... + 22051.

It is an arithmetic number, because the mean of its divisors is an integer number (494865).

2^2551246 is an apocalyptic number.

2551246 is a deficient number, since it is larger than the sum of its proper divisors (1407674).

2551246 is a wasteful number, since it uses less digits than its factorization.

2551246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44018.

The product of its digits is 2400, while the sum is 25.

The square root of 2551246 is about 1597.2620323541. The cubic root of 2551246 is about 136.6419692300.

Adding to 2551246 its reverse (6421552), we get a palindrome (8972798).

The spelling of 2551246 in words is "two million, five hundred fifty-one thousand, two hundred forty-six".