56772587 has 2 divisors, whose sum is σ = 56772588. Its totient is φ = 56772586.

The previous prime is 56772557. The next prime is 56772601. The reversal of 56772587 is 78527765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56772587 is a prime.

It is not a weakly prime, because it can be changed into another prime (56772557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28386293 + 28386294.

It is an arithmetic number, because the mean of its divisors is an integer number (28386294).

Almost surely, 2^56772587 is an apocalyptic number.

56772587 is a deficient number, since it is larger than the sum of its proper divisors (1).

56772587 is an equidigital number, since it uses as much as digits as its factorization.

56772587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823200, while the sum is 47.

The square root of 56772587 is about 7534.7585893644. The cubic root of 56772587 is about 384.3376185649.

The spelling of 56772587 in words is "fifty-six million, seven hundred seventy-two thousand, five hundred eighty-seven".