5251210389 has 12 divisors (see below), whose sum is σ = 7585883916. Its totient is φ = 3500436672.

The previous prime is 5251210381. The next prime is 5251210399. The reversal of 5251210389 is 9830121525.

5251210389 is a `hidden beast` number, since 5 + 251 + 21 + 0 + 389 = 666.

5251210389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4625360100 + 625850289 = 68010^2 + 25017^2 .

It is not a de Polignac number, because 5251210389 - 2³ = 5251210381 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251210381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79887 + ... + 129939.

It is an arithmetic number, because the mean of its divisors is an integer number (632156993).

Almost surely, 2^5251210389 is an apocalyptic number.

It is an amenable number.

5251210389 is a deficient number, since it is larger than the sum of its proper divisors (2334673527).

5251210389 is a wasteful number, since it uses less digits than its factorization.

5251210389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61716 (or 61713 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 5251210389 is about 72465.2357272092. The cubic root of 5251210389 is about 1738.1468786693.

The spelling of 5251210389 in words is "five billion, two hundred fifty-one million, two hundred ten thousand, three hundred eighty-nine".