2551238 has 8 divisors (see below), whose sum is σ = 3950400. Its totient is φ = 1234440.

The previous prime is 2551223. The next prime is 2551247. The reversal of 2551238 is 8321552.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20513 + ... + 20636.

It is an arithmetic number, because the mean of its divisors is an integer number (493800).

2^2551238 is an apocalyptic number.

2551238 is a deficient number, since it is larger than the sum of its proper divisors (1399162).

2551238 is a wasteful number, since it uses less digits than its factorization.

2551238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41182.

The product of its digits is 2400, while the sum is 26.

The square root of 2551238 is about 1597.2595280667. The cubic root of 2551238 is about 136.6418264061.

The spelling of 2551238 in words is "two million, five hundred fifty-one thousand, two hundred thirty-eight".