20294951 has 2 divisors, whose sum is σ = 20294952. Its totient is φ = 20294950.

The previous prime is 20294941. The next prime is 20294969. The reversal of 20294951 is 15949202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20294951 - 2¹⁸ = 20032807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20294941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10147475 + 10147476.

It is an arithmetic number, because the mean of its divisors is an integer number (10147476).

Almost surely, 2^20294951 is an apocalyptic number.

20294951 is a deficient number, since it is larger than the sum of its proper divisors (1).

20294951 is an equidigital number, since it uses as much as digits as its factorization.

20294951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 20294951 is about 4504.9917868960. The cubic root of 20294951 is about 272.7696223158.

The spelling of 20294951 in words is "twenty million, two hundred ninety-four thousand, nine hundred fifty-one".