5251521140 has 12 divisors (see below), whose sum is σ = 11028194436. Its totient is φ = 2100608448.

The previous prime is 5251521139. The next prime is 5251521151. The reversal of 5251521140 is 411251525.

It can be written as a sum of positive squares in 2 ways, for example, as 2474863504 + 2776657636 = 49748^2 + 52694^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131288009 + ... + 131288048.

It is an arithmetic number, because the mean of its divisors is an integer number (919016203).

Almost surely, 2^5251521140 is an apocalyptic number.

It is an amenable number.

5251521140 is an abundant number, since it is smaller than the sum of its proper divisors (5776673296).

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

5251521140 is a wasteful number, since it uses less digits than its factorization.

5251521140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262576066 (or 262576064 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 5251521140 is about 72467.3798339639. The cubic root of 5251521140 is about 1738.1811641125.

Adding to 5251521140 its reverse (411251525), we get a palindrome (5662772665).

The spelling of 5251521140 in words is "five billion, two hundred fifty-one million, five hundred twenty-one thousand, one hundred forty".