5155213238 has 32 divisors (see below), whose sum is σ = 9227506176. Its totient is φ = 2111997888.

The previous prime is 5155213237. The next prime is 5155213253. The reversal of 5155213238 is 8323125515.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5155213198 and 5155213207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155213237) 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, 640970 + ... + 648962.

It is an arithmetic number, because the mean of its divisors is an integer number (288359568).

Almost surely, 2^5155213238 is an apocalyptic number.

5155213238 is a deficient number, since it is larger than the sum of its proper divisors (4072292938).

5155213238 is a wasteful number, since it uses less digits than its factorization.

5155213238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028.

The product of its digits is 36000, while the sum is 35.

The square root of 5155213238 is about 71799.8136348556. The cubic root of 5155213238 is about 1727.4900104208.

The spelling of 5155213238 in words is "five billion, one hundred fifty-five million, two hundred thirteen thousand, two hundred thirty-eight".