20058949 has 2 divisors, whose sum is σ = 20058950. Its totient is φ = 20058948.

The previous prime is 20058937. The next prime is 20058959. The reversal of 20058949 is 94985002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19518724 + 540225 = 4418^2 + 735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20058949 is a prime.

It is a super-2 number, since 2×20058949² = 804722869969202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20058959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029474 + 10029475.

It is an arithmetic number, because the mean of its divisors is an integer number (10029475).

Almost surely, 2^20058949 is an apocalyptic number.

It is an amenable number.

20058949 is a deficient number, since it is larger than the sum of its proper divisors (1).

20058949 is an equidigital number, since it uses as much as digits as its factorization.

20058949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 20058949 is about 4478.7218042651. The cubic root of 20058949 is about 271.7081870790.

The spelling of 20058949 in words is "twenty million, fifty-eight thousand, nine hundred forty-nine".