5520161 has 4 divisors (see below), whose sum is σ = 5760192. Its totient is φ = 5280132.

The previous prime is 5520157. The next prime is 5520169. The reversal of 5520161 is 1610255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1610255 = 5 ⋅322051.

It is a cyclic number.

It is not a de Polignac number, because 5520161 - 2² = 5520157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5520169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119981 + ... + 120026.

It is an arithmetic number, because the mean of its divisors is an integer number (1440048).

Almost surely, 2^5520161 is an apocalyptic number.

It is an amenable number.

5520161 is a deficient number, since it is larger than the sum of its proper divisors (240031).

5520161 is a wasteful number, since it uses less digits than its factorization.

5520161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240030.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 5520161 is about 2349.5022877197. The cubic root of 5520161 is about 176.7328366506.

The spelling of 5520161 in words is "five million, five hundred twenty thousand, one hundred sixty-one".