55100887 has 2 divisors, whose sum is σ = 55100888. Its totient is φ = 55100886.

The previous prime is 55100869. The next prime is 55100891. The reversal of 55100887 is 78800155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55100887 - 2¹⁵ = 55068119 is a prime.

It is a super-2 number, since 2×55100887² = 6072215496373538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55100897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550443 + 27550444.

It is an arithmetic number, because the mean of its divisors is an integer number (27550444).

Almost surely, 2^55100887 is an apocalyptic number.

55100887 is a deficient number, since it is larger than the sum of its proper divisors (1).

55100887 is an equidigital number, since it uses as much as digits as its factorization.

55100887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 55100887 is about 7422.9971709546. The cubic root of 55100887 is about 380.5276303882.

The spelling of 55100887 in words is "fifty-five million, one hundred thousand, eight hundred eighty-seven".