60906509 has 2 divisors, whose sum is σ = 60906510. Its totient is φ = 60906508.

The previous prime is 60906499. The next prime is 60906541. The reversal of 60906509 is 90560906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45185284 + 15721225 = 6722^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 60906509 - 2⁴ = 60906493 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 (60906589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30453254 + 30453255.

It is an arithmetic number, because the mean of its divisors is an integer number (30453255).

Almost surely, 2^60906509 is an apocalyptic number.

It is an amenable number.

60906509 is a deficient number, since it is larger than the sum of its proper divisors (1).

60906509 is an equidigital number, since it uses as much as digits as its factorization.

60906509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 60906509 is about 7804.2622329084. The cubic root of 60906509 is about 393.4485077988.

The spelling of 60906509 in words is "sixty million, nine hundred six thousand, five hundred nine".