2553631878 has 16 divisors (see below), whose sum is σ = 5836872960. Its totient is φ = 729609096.

The previous prime is 2553631813. The next prime is 2553631889. The reversal of 2553631878 is 8781363552.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 30400338 + ... + 30400421.

It is an arithmetic number, because the mean of its divisors is an integer number (364804560).

Almost surely, 2^2553631878 is an apocalyptic number.

2553631878 is an abundant number, since it is smaller than the sum of its proper divisors (3283241082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2553631878 is a wasteful number, since it uses less digits than its factorization.

2553631878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60800771.

The product of its digits is 1209600, while the sum is 48.

The square root of 2553631878 is about 50533.4728472129. The cubic root of 2553631878 is about 1366.8455097173.

The spelling of 2553631878 in words is "two billion, five hundred fifty-three million, six hundred thirty-one thousand, eight hundred seventy-eight".