5155218431 has 12 divisors (see below), whose sum is σ = 5999804496. Its totient is φ = 4410880320.

The previous prime is 5155218407. The next prime is 5155218449. The reversal of 5155218431 is 1348125515.

It is not a de Polignac number, because 5155218431 - 2²⁶ = 5088109567 is a prime.

It is a super-2 number, since 2×5155218431² = 53152554142644203522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5155218391 and 5155218400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155218461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251035 + ... + 1255148.

It is an arithmetic number, because the mean of its divisors is an integer number (499983708).

Almost surely, 2^5155218431 is an apocalyptic number.

5155218431 is a deficient number, since it is larger than the sum of its proper divisors (844586065).

5155218431 is a wasteful number, since it uses less digits than its factorization.

5155218431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506222 (or 2506211 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 5155218431 is about 71799.8497978930. The cubic root of 5155218431 is about 1727.4905904714.

The spelling of 5155218431 in words is "five billion, one hundred fifty-five million, two hundred eighteen thousand, four hundred thirty-one".