2778250075 has 12 divisors (see below), whose sum is σ = 3647679480. Its totient is φ = 2091858560.

The previous prime is 2778250061. The next prime is 2778250087. The reversal of 2778250075 is 5700528772.

It is not a de Polignac number, because 2778250075 - 2²⁵ = 2744695643 is a prime.

It is a super-3 number, since 3×2778250075³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3268105 + ... + 3268954.

It is an arithmetic number, because the mean of its divisors is an integer number (303973290).

Almost surely, 2^2778250075 is an apocalyptic number.

2778250075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2778250075 is a deficient number, since it is larger than the sum of its proper divisors (869429405).

2778250075 is a wasteful number, since it uses less digits than its factorization.

2778250075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537086 (or 6537081 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 2778250075 is about 52709.1080838976. The cubic root of 2778250075 is about 1405.8007745023.

The spelling of 2778250075 in words is "two billion, seven hundred seventy-eight million, two hundred fifty thousand, seventy-five".