5522155987 has 2 divisors, whose sum is σ = 5522155988. Its totient is φ = 5522155986.

The previous prime is 5522155963. The next prime is 5522156027. The reversal of 5522155987 is 7895512255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5522155987 - 2¹⁹ = 5521631699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5522155987.

It is not a weakly prime, because it can be changed into another prime (5522155927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2761077993 + 2761077994.

It is an arithmetic number, because the mean of its divisors is an integer number (2761077994).

Almost surely, 2^5522155987 is an apocalyptic number.

5522155987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5522155987 is an equidigital number, since it uses as much as digits as its factorization.

5522155987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260000, while the sum is 49.

The square root of 5522155987 is about 74311.2103723254. The cubic root of 5522155987 is about 1767.5412451072.

The spelling of 5522155987 in words is "five billion, five hundred twenty-two million, one hundred fifty-five thousand, nine hundred eighty-seven".