625471943 has 2 divisors, whose sum is σ = 625471944. Its totient is φ = 625471942.

The previous prime is 625471907. The next prime is 625471967. The reversal of 625471943 is 349174526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625471943 - 2¹⁴ = 625455559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625471943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625474943) 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, 312735971 + 312735972.

It is an arithmetic number, because the mean of its divisors is an integer number (312735972).

Almost surely, 2^625471943 is an apocalyptic number.

625471943 is a deficient number, since it is larger than the sum of its proper divisors (1).

625471943 is an equidigital number, since it uses as much as digits as its factorization.

625471943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 625471943 is about 25009.4370788309. The cubic root of 625471943 is about 855.2031221747.

The spelling of 625471943 in words is "six hundred twenty-five million, four hundred seventy-one thousand, nine hundred forty-three".