2553761787 has 8 divisors (see below), whose sum is σ = 3484202304. Its totient is φ = 1662914568.

The previous prime is 2553761773. The next prime is 2553761813. The reversal of 2553761787 is 7871673552.

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

It is not a de Polignac number, because 2553761787 - 2⁷ = 2553761659 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2553761087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9898173 + ... + 9898430.

It is an arithmetic number, because the mean of its divisors is an integer number (435525288).

Almost surely, 2^2553761787 is an apocalyptic number.

2553761787 is a deficient number, since it is larger than the sum of its proper divisors (930440517).

2553761787 is a wasteful number, since it uses less digits than its factorization.

2553761787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19796649.

The product of its digits is 2469600, while the sum is 51.

The square root of 2553761787 is about 50534.7582066047. The cubic root of 2553761787 is about 1366.8686874932.

The spelling of 2553761787 in words is "two billion, five hundred fifty-three million, seven hundred sixty-one thousand, seven hundred eighty-seven".