20150456503 has 2 divisors, whose sum is σ = 20150456504. Its totient is φ = 20150456502.

The previous prime is 20150456497. The next prime is 20150456519. The reversal of 20150456503 is 30565405102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20150456503 - 2²⁹ = 19613585591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20150459503) 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, 10075228251 + 10075228252.

It is an arithmetic number, because the mean of its divisors is an integer number (10075228252).

Almost surely, 2^20150456503 is an apocalyptic number.

20150456503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150456503 is an equidigital number, since it uses as much as digits as its factorization.

20150456503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20150456503 in words is "twenty billion, one hundred fifty million, four hundred fifty-six thousand, five hundred three".