5515252161 has 8 divisors (see below), whose sum is σ = 7607244480. Its totient is φ = 3550047312.

The previous prime is 5515252159. The next prime is 5515252163. The reversal of 5515252161 is 1612525155.

It is an interprime number because it is at equal distance from previous prime (5515252159) and next prime (5515252163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5515252161 - 2¹ = 5515252159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5515252163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31696765 + ... + 31696938.

It is an arithmetic number, because the mean of its divisors is an integer number (950905560).

Almost surely, 2^5515252161 is an apocalyptic number.

It is an amenable number.

5515252161 is a deficient number, since it is larger than the sum of its proper divisors (2091992319).

5515252161 is a wasteful number, since it uses less digits than its factorization.

5515252161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63393735.

The product of its digits is 15000, while the sum is 33.

The square root of 5515252161 is about 74264.7437280975. The cubic root of 5515252161 is about 1766.8043417371.

The spelling of 5515252161 in words is "five billion, five hundred fifteen million, two hundred fifty-two thousand, one hundred sixty-one".