5554999987 has 2 divisors, whose sum is σ = 5554999988. Its totient is φ = 5554999986.

The previous prime is 5554999973. The next prime is 5555000029. The reversal of 5554999987 is 7899994555.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5554999987 is a prime.

It is not a weakly prime, because it can be changed into another prime (5554999927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777499993 + 2777499994.

It is an arithmetic number, because the mean of its divisors is an integer number (2777499994).

Almost surely, 2^5554999987 is an apocalyptic number.

5554999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5554999987 is an equidigital number, since it uses as much as digits as its factorization.

5554999987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708000, while the sum is 70.

The square root of 5554999987 is about 74531.8722896453. The cubic root of 5554999987 is about 1771.0385753676.

The spelling of 5554999987 in words is "five billion, five hundred fifty-four million, nine hundred ninety-nine thousand, nine hundred eighty-seven".