5161501555 has 32 divisors (see below), whose sum is σ = 7190995968. Its totient is φ = 3483312000.

The previous prime is 5161501549. The next prime is 5161501559. The reversal of 5161501555 is 5551051615.

It is not a de Polignac number, because 5161501555 - 2¹¹ = 5161499507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5161501555.

It is not an unprimeable number, because it can be changed into a prime (5161501559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1740504 + ... + 1743466.

It is an arithmetic number, because the mean of its divisors is an integer number (224718624).

Almost surely, 2^5161501555 is an apocalyptic number.

5161501555 is a deficient number, since it is larger than the sum of its proper divisors (2029494413).

5161501555 is a wasteful number, since it uses less digits than its factorization.

5161501555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747.

The product of its (nonzero) digits is 18750, while the sum is 34.

The square root of 5161501555 is about 71843.5909110896. The cubic root of 5161501555 is about 1728.1921211063.

The spelling of 5161501555 in words is "five billion, one hundred sixty-one million, five hundred one thousand, five hundred fifty-five".