2551893 has 4 divisors (see below), whose sum is σ = 3402528. Its totient is φ = 1701260.

The previous prime is 2551883. The next prime is 2551903. The reversal of 2551893 is 3981552.

2551893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2551883) and next prime (2551903).

It is a cyclic number.

It is not a de Polignac number, because 2551893 - 2⁴ = 2551877 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551823) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 425313 + ... + 425318.

It is an arithmetic number, because the mean of its divisors is an integer number (850632).

2^2551893 is an apocalyptic number.

It is an amenable number.

2551893 is a deficient number, since it is larger than the sum of its proper divisors (850635).

2551893 is an equidigital number, since it uses as much as digits as its factorization.

2551893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850634.

The product of its digits is 10800, while the sum is 33.

The square root of 2551893 is about 1597.4645535974. The cubic root of 2551893 is about 136.6535191265.

It can be divided in two parts, 255189 and 3, that multiplied together give a palindrome (765567).

The spelling of 2551893 in words is "two million, five hundred fifty-one thousand, eight hundred ninety-three".