276220051 has 4 divisors (see below), whose sum is σ = 276502032. Its totient is φ = 275938072.

The previous prime is 276220039. The next prime is 276220057. The reversal of 276220051 is 150022672.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276220051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 276219998 and 276220025.

It is not an unprimeable number, because it can be changed into a prime (276220057) by changing a digit.

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, 139516 + ... + 141481.

It is an arithmetic number, because the mean of its divisors is an integer number (69125508).

Almost surely, 2^276220051 is an apocalyptic number.

276220051 is a deficient number, since it is larger than the sum of its proper divisors (281981).

276220051 is an equidigital number, since it uses as much as digits as its factorization.

276220051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281980.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 276220051 is about 16619.8691631433. The cubic root of 276220051 is about 651.2559943598.

The spelling of 276220051 in words is "two hundred seventy-six million, two hundred twenty thousand, fifty-one".