2553787 has 4 divisors (see below), whose sum is σ = 2557296. Its totient is φ = 2550280.

The previous prime is 2553781. The next prime is 2553797. The reversal of 2553787 is 7873552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2553787 - 2⁷ = 2553659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553781) 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, 208 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (639324).

2^2553787 is an apocalyptic number.

2553787 is a deficient number, since it is larger than the sum of its proper divisors (3509).

2553787 is a wasteful number, since it uses less digits than its factorization.

2553787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508.

The product of its digits is 58800, while the sum is 37.

The square root of 2553787 is about 1598.0572580480. The cubic root of 2553787 is about 136.6873185791.

The spelling of 2553787 in words is "two million, five hundred fifty-three thousand, seven hundred eighty-seven".