5155218407 has 2 divisors, whose sum is σ = 5155218408. Its totient is φ = 5155218406.

The previous prime is 5155218389. The next prime is 5155218449. The reversal of 5155218407 is 7048125515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5155218407 - 2²² = 5151024103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5155248407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577609203 + 2577609204.

It is an arithmetic number, because the mean of its divisors is an integer number (2577609204).

Almost surely, 2^5155218407 is an apocalyptic number.

5155218407 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155218407 is an equidigital number, since it uses as much as digits as its factorization.

5155218407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 5155218407 is about 71799.8496307618. The cubic root of 5155218407 is about 1727.4905877906.

The spelling of 5155218407 in words is "five billion, one hundred fifty-five million, two hundred eighteen thousand, four hundred seven".