276225407 has 4 divisors (see below), whose sum is σ = 285135936. Its totient is φ = 267314880.

The previous prime is 276225379. The next prime is 276225431. The reversal of 276225407 is 704522672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 276225407 - 2¹⁰ = 276224383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276225437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4455218 + ... + 4455279.

It is an arithmetic number, because the mean of its divisors is an integer number (71283984).

Almost surely, 2^276225407 is an apocalyptic number.

276225407 is a deficient number, since it is larger than the sum of its proper divisors (8910529).

276225407 is an equidigital number, since it uses as much as digits as its factorization.

276225407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910528.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 276225407 is about 16620.0302947979. The cubic root of 276225407 is about 651.2602036904.

The spelling of 276225407 in words is "two hundred seventy-six million, two hundred twenty-five thousand, four hundred seven".