20411953 has 2 divisors, whose sum is σ = 20411954. Its totient is φ = 20411952.

The previous prime is 20411927. The next prime is 20411983. The reversal of 20411953 is 35911402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20133169 + 278784 = 4487^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 20411953 - 2⁵ = 20411921 is a prime.

It is not a weakly prime, because it can be changed into another prime (20411903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205976 + 10205977.

It is an arithmetic number, because the mean of its divisors is an integer number (10205977).

Almost surely, 2^20411953 is an apocalyptic number.

It is an amenable number.

20411953 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411953 is an equidigital number, since it uses as much as digits as its factorization.

20411953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20411953 is about 4517.9589418232. The cubic root of 20411953 is about 273.2927977102.

The spelling of 20411953 in words is "twenty million, four hundred eleven thousand, nine hundred fifty-three".