7525563737 has 2 divisors, whose sum is σ = 7525563738. Its totient is φ = 7525563736.

The previous prime is 7525563691. The next prime is 7525563803. The reversal of 7525563737 is 7373655257.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4167477136 + 3358086601 = 64556^2 + 57949^2 .

It is a cyclic number.

It is not a de Polignac number, because 7525563737 - 2⁶ = 7525563673 is a prime.

It is not a weakly prime, because it can be changed into another prime (7525560737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762781868 + 3762781869.

It is an arithmetic number, because the mean of its divisors is an integer number (3762781869).

Almost surely, 2^7525563737 is an apocalyptic number.

It is an amenable number.

7525563737 is a deficient number, since it is larger than the sum of its proper divisors (1).

7525563737 is an equidigital number, since it uses as much as digits as its factorization.

7525563737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4630500, while the sum is 50.

The square root of 7525563737 is about 86750.0071296827. The cubic root of 7525563737 is about 1959.6552684873.

The spelling of 7525563737 in words is "seven billion, five hundred twenty-five million, five hundred sixty-three thousand, seven hundred thirty-seven".