1252521607 has 2 divisors, whose sum is σ = 1252521608. Its totient is φ = 1252521606.

The previous prime is 1252521583. The next prime is 1252521623. The reversal of 1252521607 is 7061252521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252521607 - 2¹¹ = 1252519559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252521637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626260803 + 626260804.

It is an arithmetic number, because the mean of its divisors is an integer number (626260804).

Almost surely, 2^1252521607 is an apocalyptic number.

1252521607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252521607 is an equidigital number, since it uses as much as digits as its factorization.

1252521607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1252521607 is about 35390.9820010691. The cubic root of 1252521607 is about 1077.9412101657.

The spelling of 1252521607 in words is "one billion, two hundred fifty-two million, five hundred twenty-one thousand, six hundred seven".