55650887 has 2 divisors, whose sum is σ = 55650888. Its totient is φ = 55650886.

The previous prime is 55650863. The next prime is 55650929. The reversal of 55650887 is 78805655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55650887 - 2⁸ = 55650631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55650827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825443 + 27825444.

It is an arithmetic number, because the mean of its divisors is an integer number (27825444).

Almost surely, 2^55650887 is an apocalyptic number.

55650887 is a deficient number, since it is larger than the sum of its proper divisors (1).

55650887 is an equidigital number, since it uses as much as digits as its factorization.

55650887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336000, while the sum is 44.

The square root of 55650887 is about 7459.9522116432. The cubic root of 55650887 is about 381.7895439886.

The spelling of 55650887 in words is "fifty-five million, six hundred fifty thousand, eight hundred eighty-seven".