5166223553 has 4 divisors (see below), whose sum is σ = 5168843988. Its totient is φ = 5163603120.

The previous prime is 5166223547. The next prime is 5166223571. The reversal of 5166223553 is 3553226615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3553226615 = 5 ⋅710645323.

It can be written as a sum of positive squares in 2 ways, for example, as 3164287504 + 2001936049 = 56252^2 + 44743^2 .

It is a cyclic number.

It is not a de Polignac number, because 5166223553 - 2⁴ = 5166223537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5166225553) 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, 1307258 + ... + 1311203.

It is an arithmetic number, because the mean of its divisors is an integer number (1292210997).

Almost surely, 2^5166223553 is an apocalyptic number.

It is an amenable number.

5166223553 is a deficient number, since it is larger than the sum of its proper divisors (2620435).

5166223553 is a wasteful number, since it uses less digits than its factorization.

5166223553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620434.

The product of its digits is 162000, while the sum is 38.

The square root of 5166223553 is about 71876.4464410978. The cubic root of 5166223553 is about 1728.7189724736.

The spelling of 5166223553 in words is "five billion, one hundred sixty-six million, two hundred twenty-three thousand, five hundred fifty-three".