5515995157 has 2 divisors, whose sum is σ = 5515995158. Its totient is φ = 5515995156.

The previous prime is 5515995061. The next prime is 5515995169. The reversal of 5515995157 is 7515995155.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5118830116 + 397165041 = 71546^2 + 19929^2 .

It is a cyclic number.

It is not a de Polignac number, because 5515995157 - 2⁷ = 5515995029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5515995857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757997578 + 2757997579.

It is an arithmetic number, because the mean of its divisors is an integer number (2757997579).

Almost surely, 2^5515995157 is an apocalyptic number.

It is an amenable number.

5515995157 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515995157 is an equidigital number, since it uses as much as digits as its factorization.

5515995157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1771875, while the sum is 52.

The square root of 5515995157 is about 74269.7459063918. The cubic root of 5515995157 is about 1766.8836774638.

The spelling of 5515995157 in words is "five billion, five hundred fifteen million, nine hundred ninety-five thousand, one hundred fifty-seven".