55888487 has 2 divisors, whose sum is σ = 55888488. Its totient is φ = 55888486.

The previous prime is 55888457. The next prime is 55888489. The reversal of 55888487 is 78488855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55888487 - 2¹⁰ = 55887463 is a prime.

Together with 55888489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55888489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27944243 + 27944244.

It is an arithmetic number, because the mean of its divisors is an integer number (27944244).

Almost surely, 2^55888487 is an apocalyptic number.

55888487 is a deficient number, since it is larger than the sum of its proper divisors (1).

55888487 is an equidigital number, since it uses as much as digits as its factorization.

55888487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2867200, while the sum is 53.

The square root of 55888487 is about 7475.8602849438. The cubic root of 55888487 is about 382.3321193585.

It can be divided in two parts, 5588848 and 7, that added together give a palindrome (5588855).

The spelling of 55888487 in words is "fifty-five million, eight hundred eighty-eight thousand, four hundred eighty-seven".