2525127778 has 8 divisors (see below), whose sum is σ = 3987043920. Its totient is φ = 1196113140.

The previous prime is 2525127769. The next prime is 2525127791. The reversal of 2525127778 is 8777215252.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33225328 + ... + 33225403.

It is an arithmetic number, because the mean of its divisors is an integer number (498380490).

Almost surely, 2^2525127778 is an apocalyptic number.

2525127778 is a deficient number, since it is larger than the sum of its proper divisors (1461916142).

2525127778 is a wasteful number, since it uses less digits than its factorization.

2525127778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66450752.

The product of its digits is 548800, while the sum is 46.

The square root of 2525127778 is about 50250.6495281404. The cubic root of 2525127778 is about 1361.7408103748.

The spelling of 2525127778 in words is "two billion, five hundred twenty-five million, one hundred twenty-seven thousand, seven hundred seventy-eight".