2551393 has 12 divisors (see below), whose sum is σ = 2857728. Its totient is φ = 2274480.

The previous prime is 2551369. The next prime is 2551397. The reversal of 2551393 is 3931552.

It is not a de Polignac number, because 2551393 - 2¹³ = 2543201 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4996 + ... + 5482.

It is an arithmetic number, because the mean of its divisors is an integer number (238144).

2^2551393 is an apocalyptic number.

It is an amenable number.

2551393 is a deficient number, since it is larger than the sum of its proper divisors (306335).

2551393 is a wasteful number, since it uses less digits than its factorization.

2551393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 531 counting only the distinct ones).

The product of its digits is 4050, while the sum is 28.

The square root of 2551393 is about 1597.3080479357. The cubic root of 2551393 is about 136.6445935665.

The spelling of 2551393 in words is "two million, five hundred fifty-one thousand, three hundred ninety-three".