5155426221 has 16 divisors (see below), whose sum is σ = 7601528640. Its totient is φ = 3081697920.

The previous prime is 5155426217. The next prime is 5155426231. The reversal of 5155426221 is 1226245515.

It is not a de Polignac number, because 5155426221 - 2² = 5155426217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155426231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067626 + ... + 1072443.

It is an arithmetic number, because the mean of its divisors is an integer number (475095540).

Almost surely, 2^5155426221 is an apocalyptic number.

It is an amenable number.

5155426221 is a deficient number, since it is larger than the sum of its proper divisors (2446102419).

5155426221 is a wasteful number, since it uses less digits than its factorization.

5155426221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140156.

The product of its digits is 24000, while the sum is 33.

The square root of 5155426221 is about 71801.2967919104. The cubic root of 5155426221 is about 1727.5137999921.

The spelling of 5155426221 in words is "five billion, one hundred fifty-five million, four hundred twenty-six thousand, two hundred twenty-one".