20152051 has 2 divisors, whose sum is σ = 20152052. Its totient is φ = 20152050.

The previous prime is 20152039. The next prime is 20152063. The reversal of 20152051 is 15025102.

It is a balanced prime because it is at equal distance from previous prime (20152039) and next prime (20152063).

It is a cyclic number.

It is not a de Polignac number, because 20152051 - 2⁵ = 20152019 is a prime.

It is a super-2 number, since 2×20152051² = 812210319013202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20152351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076025 + 10076026.

It is an arithmetic number, because the mean of its divisors is an integer number (10076026).

Almost surely, 2^20152051 is an apocalyptic number.

20152051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152051 is an equidigital number, since it uses as much as digits as its factorization.

20152051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 20152051 is about 4489.1035853498. The cubic root of 20152051 is about 272.1279089514.

Adding to 20152051 its reverse (15025102), we get a palindrome (35177153).

The spelling of 20152051 in words is "twenty million, one hundred fifty-two thousand, fifty-one".