630425933 has 2 divisors, whose sum is σ = 630425934. Its totient is φ = 630425932.

The previous prime is 630425927. The next prime is 630425959. The reversal of 630425933 is 339524036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443228809 + 187197124 = 21053^2 + 13682^2 .

It is a cyclic number.

It is not a de Polignac number, because 630425933 - 2²² = 626231629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 630425893 and 630425902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630421933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315212966 + 315212967.

It is an arithmetic number, because the mean of its divisors is an integer number (315212967).

Almost surely, 2^630425933 is an apocalyptic number.

It is an amenable number.

630425933 is a deficient number, since it is larger than the sum of its proper divisors (1).

630425933 is an equidigital number, since it uses as much as digits as its factorization.

630425933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 630425933 is about 25108.2841508535. The cubic root of 630425933 is about 857.4550384277.

Adding to 630425933 its reverse (339524036), we get a palindrome (969949969).

The spelling of 630425933 in words is "six hundred thirty million, four hundred twenty-five thousand, nine hundred thirty-three".