276221825 has 36 divisors (see below), whose sum is σ = 379975680. Its totient is φ = 199029600.

The previous prime is 276221819. The next prime is 276221863. The reversal of 276221825 is 528122672.

It is not a de Polignac number, because 276221825 - 2¹⁴ = 276205441 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 383816 + ... + 384534.

It is an arithmetic number, because the mean of its divisors is an integer number (10554880).

Almost surely, 2^276221825 is an apocalyptic number.

276221825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

276221825 is a deficient number, since it is larger than the sum of its proper divisors (103753855).

276221825 is a wasteful number, since it uses less digits than its factorization.

276221825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 862 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 276221825 is about 16619.9225329121. The cubic root of 276221825 is about 651.2573885691.

The spelling of 276221825 in words is "two hundred seventy-six million, two hundred twenty-one thousand, eight hundred twenty-five".