2778574125 has 16 divisors (see below), whose sum is σ = 4623547968. Its totient is φ = 1481906000.

The previous prime is 2778574093. The next prime is 2778574147. The reversal of 2778574125 is 5214758772.

It is not a de Polignac number, because 2778574125 - 2⁵ = 2778574093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3704391 + ... + 3705140.

It is an arithmetic number, because the mean of its divisors is an integer number (288971748).

Almost surely, 2^2778574125 is an apocalyptic number.

2778574125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2778574125 is a deficient number, since it is larger than the sum of its proper divisors (1844973843).

2778574125 is an equidigital number, since it uses as much as digits as its factorization.

2778574125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7409549 (or 7409539 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 48.

The square root of 2778574125 is about 52712.1819411794. The cubic root of 2778574125 is about 1405.8554290532.

The spelling of 2778574125 in words is "two billion, seven hundred seventy-eight million, five hundred seventy-four thousand, one hundred twenty-five".