5251919240 has 16 divisors (see below), whose sum is σ = 11816818380. Its totient is φ = 2100767680.

The previous prime is 5251919237. The next prime is 5251919243. The reversal of 5251919240 is 429191525.

It is an interprime number because it is at equal distance from previous prime (5251919237) and next prime (5251919243).

It can be written as a sum of positive squares in 2 ways, for example, as 4910926084 + 340993156 = 70078^2 + 18466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5251919194 and 5251919203.

It is not an unprimeable number, because it can be changed into a prime (5251919243) 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, 65648951 + ... + 65649030.

Almost surely, 2^5251919240 is an apocalyptic number.

It is an amenable number.

5251919240 is an abundant number, since it is smaller than the sum of its proper divisors (6564899140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5251919240 is a wasteful number, since it uses less digits than its factorization.

5251919240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131297992 (or 131297988 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 5251919240 is about 72470.1265350075. The cubic root of 5251919240 is about 1738.2250848749.

The spelling of 5251919240 in words is "five billion, two hundred fifty-one million, nine hundred nineteen thousand, two hundred forty".