625801349 has 2 divisors, whose sum is σ = 625801350. Its totient is φ = 625801348.

The previous prime is 625801339. The next prime is 625801357. The reversal of 625801349 is 943108526.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622153249 + 3648100 = 24943^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 625801349 - 2¹² = 625797253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625801339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312900674 + 312900675.

It is an arithmetic number, because the mean of its divisors is an integer number (312900675).

Almost surely, 2^625801349 is an apocalyptic number.

It is an amenable number.

625801349 is a deficient number, since it is larger than the sum of its proper divisors (1).

625801349 is an equidigital number, since it uses as much as digits as its factorization.

625801349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 625801349 is about 25016.0218460090. The cubic root of 625801349 is about 855.3532272823.

The spelling of 625801349 in words is "six hundred twenty-five million, eight hundred one thousand, three hundred forty-nine".