5131985333 has 4 divisors (see below), whose sum is σ = 5150248908. Its totient is φ = 5113721760.

The previous prime is 5131985233. The next prime is 5131985351. The reversal of 5131985333 is 3335891315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2827793329 + 2304192004 = 53177^2 + 48002^2 .

It is a cyclic number.

It is not a de Polignac number, because 5131985333 - 2¹⁴ = 5131968949 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 (5131985363) 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, 9131366 + ... + 9131927.

It is an arithmetic number, because the mean of its divisors is an integer number (1287562227).

Almost surely, 2^5131985333 is an apocalyptic number.

It is an amenable number.

5131985333 is a deficient number, since it is larger than the sum of its proper divisors (18263575).

5131985333 is a wasteful number, since it uses less digits than its factorization.

5131985333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18263574.

The product of its digits is 145800, while the sum is 41.

The square root of 5131985333 is about 71637.8763853312. The cubic root of 5131985333 is about 1724.8915798832.

The spelling of 5131985333 in words is "five billion, one hundred thirty-one million, nine hundred eighty-five thousand, three hundred thirty-three".