2500227978 has 16 divisors (see below), whose sum is σ = 5294600640. Its totient is φ = 784385216.

The previous prime is 2500227971. The next prime is 2500227979. The reversal of 2500227978 is 8797220052.

It is a happy number.

It is a super-2 number, since 2×2500227978² = 12502279883947936968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2500227971) 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, 12255918 + ... + 12256121.

It is an arithmetic number, because the mean of its divisors is an integer number (330912540).

Almost surely, 2^2500227978 is an apocalyptic number.

2500227978 is an abundant number, since it is smaller than the sum of its proper divisors (2794372662).

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

2500227978 is a wasteful number, since it uses less digits than its factorization.

2500227978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24512061.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 2500227978 is about 50002.2797280284. The cubic root of 2500227978 is about 1357.2500622101.

The spelling of 2500227978 in words is "two billion, five hundred million, two hundred twenty-seven thousand, nine hundred seventy-eight".