276050021 has 8 divisors (see below), whose sum is σ = 300013560. Its totient is φ = 252476352.

The previous prime is 276050003. The next prime is 276050039. The reversal of 276050021 is 120050672.

It is an interprime number because it is at equal distance from previous prime (276050003) and next prime (276050039).

It can be written as a sum of positive squares in 4 ways, for example, as 75516100 + 200533921 = 8690^2 + 14161^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 276050021 - 2⁶ = 276049957 is a prime.

It is a super-2 number, since 2×276050021² = 152407228188200882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272050021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95990 + ... + 98823.

It is an arithmetic number, because the mean of its divisors is an integer number (37501695).

Almost surely, 2^276050021 is an apocalyptic number.

It is an amenable number.

276050021 is a deficient number, since it is larger than the sum of its proper divisors (23963539).

276050021 is a wasteful number, since it uses less digits than its factorization.

276050021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194935.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 276050021 is about 16614.7531128211. The cubic root of 276050021 is about 651.1223378964.

The spelling of 276050021 in words is "two hundred seventy-six million, fifty thousand, twenty-one".