20272951 has 2 divisors, whose sum is σ = 20272952. Its totient is φ = 20272950.

The previous prime is 20272949. The next prime is 20272957. The reversal of 20272951 is 15927202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20272951 - 2¹ = 20272949 is a prime.

Together with 20272949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20272957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10136475 + 10136476.

It is an arithmetic number, because the mean of its divisors is an integer number (10136476).

Almost surely, 2^20272951 is an apocalyptic number.

20272951 is a deficient number, since it is larger than the sum of its proper divisors (1).

20272951 is an equidigital number, since it uses as much as digits as its factorization.

20272951 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 28.

The square root of 20272951 is about 4502.5493889573. The cubic root of 20272951 is about 272.6710246997.

It can be divided in two parts, 202 and 72951, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 20272951 in words is "twenty million, two hundred seventy-two thousand, nine hundred fifty-one".