625445503 has 2 divisors, whose sum is σ = 625445504. Its totient is φ = 625445502.

The previous prime is 625445501. The next prime is 625445533. The reversal of 625445503 is 305544526.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 625445503 - 2¹ = 625445501 is a prime.

Together with 625445501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625445501) 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, 312722751 + 312722752.

It is an arithmetic number, because the mean of its divisors is an integer number (312722752).

Almost surely, 2^625445503 is an apocalyptic number.

625445503 is a deficient number, since it is larger than the sum of its proper divisors (1).

625445503 is an equidigital number, since it uses as much as digits as its factorization.

625445503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 625445503 is about 25008.9084727823. The cubic root of 625445503 is about 855.1910716000.

The spelling of 625445503 in words is "six hundred twenty-five million, four hundred forty-five thousand, five hundred three".