2555530278 has 16 divisors (see below), whose sum is σ = 5841212160. Its totient is φ = 730151496.

The previous prime is 2555530277. The next prime is 2555530283. The reversal of 2555530278 is 8720355552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 60845959 = 2555530278 / (2 + 5 + 5 + 5 + 5 + 3 + 0 + 2 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555530273) 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, 30422938 + ... + 30423021.

It is an arithmetic number, because the mean of its divisors is an integer number (365075760).

Almost surely, 2^2555530278 is an apocalyptic number.

2555530278 is an abundant number, since it is smaller than the sum of its proper divisors (3285681882).

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

2555530278 is a wasteful number, since it uses less digits than its factorization.

2555530278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60845971.

The product of its (nonzero) digits is 420000, while the sum is 42.

The square root of 2555530278 is about 50552.2529468272. The cubic root of 2555530278 is about 1367.1841354992.

The spelling of 2555530278 in words is "two billion, five hundred fifty-five million, five hundred thirty thousand, two hundred seventy-eight".