7255244978 has 8 divisors (see below), whose sum is σ = 10891668972. Its totient is φ = 3624688656.

The previous prime is 7255244963. The next prime is 7255244987. The reversal of 7255244978 is 8794425527.

It can be written as a sum of positive squares in 2 ways, for example, as 6562134049 + 693110929 = 81007^2 + 26327^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463825 + ... + 1468772.

Almost surely, 2^7255244978 is an apocalyptic number.

7255244978 is a deficient number, since it is larger than the sum of its proper divisors (3636423994).

7255244978 is a wasteful number, since it uses less digits than its factorization.

7255244978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933836.

The product of its digits is 5644800, while the sum is 53.

The square root of 7255244978 is about 85177.7258325203. The cubic root of 7255244978 is about 1935.9049356894.

The spelling of 7255244978 in words is "seven billion, two hundred fifty-five million, two hundred forty-four thousand, nine hundred seventy-eight".