56887471 has 2 divisors, whose sum is σ = 56887472. Its totient is φ = 56887470.

The previous prime is 56887451. The next prime is 56887529. The reversal of 56887471 is 17478865.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56887471 is a prime.

It is a super-3 number, since 3×56887471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56887451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28443735 + 28443736.

It is an arithmetic number, because the mean of its divisors is an integer number (28443736).

Almost surely, 2^56887471 is an apocalyptic number.

56887471 is a deficient number, since it is larger than the sum of its proper divisors (1).

56887471 is an equidigital number, since it uses as much as digits as its factorization.

56887471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 46.

The square root of 56887471 is about 7542.3783384288. The cubic root of 56887471 is about 384.5966901549.

The spelling of 56887471 in words is "fifty-six million, eight hundred eighty-seven thousand, four hundred seventy-one".