60655631 has 2 divisors, whose sum is σ = 60655632. Its totient is φ = 60655630.

The previous prime is 60655613. The next prime is 60655633. The reversal of 60655631 is 13655606.

60655631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (60655613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60655631 is a prime.

It is a super-2 number, since 2×60655631² = 7358211144016322, which contains 22 as substring.

Together with 60655633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60655633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30327815 + 30327816.

It is an arithmetic number, because the mean of its divisors is an integer number (30327816).

Almost surely, 2^60655631 is an apocalyptic number.

60655631 is a deficient number, since it is larger than the sum of its proper divisors (1).

60655631 is an equidigital number, since it uses as much as digits as its factorization.

60655631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 60655631 is about 7788.1725070776. The cubic root of 60655631 is about 392.9075507644.

The spelling of 60655631 in words is "sixty million, six hundred fifty-five thousand, six hundred thirty-one".