56066887 has 2 divisors, whose sum is σ = 56066888. Its totient is φ = 56066886.

The previous prime is 56066861. The next prime is 56066897. The reversal of 56066887 is 78866065.

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-56066887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56066807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28033443 + 28033444.

It is an arithmetic number, because the mean of its divisors is an integer number (28033444).

Almost surely, 2^56066887 is an apocalyptic number.

56066887 is a deficient number, since it is larger than the sum of its proper divisors (1).

56066887 is an equidigital number, since it uses as much as digits as its factorization.

56066887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 56066887 is about 7487.7825155382. The cubic root of 56066887 is about 382.7384976498.

It can be divided in two parts, 56066 and 887, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 56066887 in words is "fifty-six million, sixty-six thousand, eight hundred eighty-seven".