60605591 has 2 divisors, whose sum is σ = 60605592. Its totient is φ = 60605590.

The previous prime is 60605581. The next prime is 60605599. The reversal of 60605591 is 19550606.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60605591 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60605599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30302795 + 30302796.

It is an arithmetic number, because the mean of its divisors is an integer number (30302796).

Almost surely, 2^60605591 is an apocalyptic number.

60605591 is a deficient number, since it is larger than the sum of its proper divisors (1).

60605591 is an equidigital number, since it uses as much as digits as its factorization.

60605591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 60605591 is about 7784.9592805615. The cubic root of 60605591 is about 392.7994733955.

The spelling of 60605591 in words is "sixty million, six hundred five thousand, five hundred ninety-one".