20276351 has 2 divisors, whose sum is σ = 20276352. Its totient is φ = 20276350.

The previous prime is 20276323. The next prime is 20276419. The reversal of 20276351 is 15367202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20276351 - 2¹⁰ = 20275327 is a prime.

It is a super-2 number, since 2×20276351² = 822260819750402, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20276351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20278351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10138175 + 10138176.

It is an arithmetic number, because the mean of its divisors is an integer number (10138176).

Almost surely, 2^20276351 is an apocalyptic number.

20276351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20276351 is an equidigital number, since it uses as much as digits as its factorization.

20276351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 20276351 is about 4502.9269370044. The cubic root of 20276351 is about 272.6862671717.

The spelling of 20276351 in words is "twenty million, two hundred seventy-six thousand, three hundred fifty-one".