5155043391 has 10 divisors (see below), whose sum is σ = 7700743952. Its totient is φ = 3436695540.

The previous prime is 5155043371. The next prime is 5155043419. The reversal of 5155043391 is 1933405515.

It is a happy number.

5155043391 is a `hidden beast` number, since 515 + 50 + 4 + 3 + 3 + 91 = 666.

It is not a de Polignac number, because 5155043391 - 2¹³ = 5155035199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155043321) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31821175 + ... + 31821336.

Almost surely, 2^5155043391 is an apocalyptic number.

5155043391 is a deficient number, since it is larger than the sum of its proper divisors (2545700561).

5155043391 is an equidigital number, since it uses as much as digits as its factorization.

5155043391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63642523 (or 63642514 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 5155043391 is about 71798.6308434917. The cubic root of 5155043391 is about 1727.4710385436.

The spelling of 5155043391 in words is "five billion, one hundred fifty-five million, forty-three thousand, three hundred ninety-one".