5520420231 has 4 divisors (see below), whose sum is σ = 7360560312. Its totient is φ = 3680280152.

The previous prime is 5520420181. The next prime is 5520420247. The reversal of 5520420231 is 1320240255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5520420231 - 2¹³ = 5520412039 is a prime.

It is a super-3 number, since 3×5520420231³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5520420271) 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, 920070036 + ... + 920070041.

It is an arithmetic number, because the mean of its divisors is an integer number (1840140078).

Almost surely, 2^5520420231 is an apocalyptic number.

5520420231 is a deficient number, since it is larger than the sum of its proper divisors (1840140081).

5520420231 is a wasteful number, since it uses less digits than its factorization.

5520420231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840140080.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 5520420231 is about 74299.5304897682. The cubic root of 5520420231 is about 1767.3560311052.

Adding to 5520420231 its reverse (1320240255), we get a palindrome (6840660486).

The spelling of 5520420231 in words is "five billion, five hundred twenty million, four hundred twenty thousand, two hundred thirty-one".