55486903 has 2 divisors, whose sum is σ = 55486904. Its totient is φ = 55486902.

The previous prime is 55486901. The next prime is 55486909. The reversal of 55486903 is 30968455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55486903 - 2¹ = 55486901 is a prime.

Together with 55486901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55486901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27743451 + 27743452.

It is an arithmetic number, because the mean of its divisors is an integer number (27743452).

Almost surely, 2^55486903 is an apocalyptic number.

55486903 is a deficient number, since it is larger than the sum of its proper divisors (1).

55486903 is an equidigital number, since it uses as much as digits as its factorization.

55486903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 55486903 is about 7448.9531479262. The cubic root of 55486903 is about 381.4141742809.

The spelling of 55486903 in words is "fifty-five million, four hundred eighty-six thousand, nine hundred three".