5121531250 has 112 divisors (see below), whose sum is σ = 10732362624. Its totient is φ = 1817000000.

The previous prime is 5121531229. The next prime is 5121531251. The reversal of 5121531250 is 521351215.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (5121531251) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 16156092 + ... + 16156408.

Almost surely, 2^5121531250 is an apocalyptic number.

5121531250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5121531250 is an abundant number, since it is smaller than the sum of its proper divisors (5610831374).

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

5121531250 is an equidigital number, since it uses as much as digits as its factorization.

5121531250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 5121531250 is about 71564.8744147574. The cubic root of 5121531250 is about 1723.7195566763.

Adding to 5121531250 its reverse (521351215), we get a palindrome (5642882465).

It can be divided in two parts, 512 and 1531250, that multiplied together give a square (784000000 = 28000²).

The spelling of 5121531250 in words is "five billion, one hundred twenty-one million, five hundred thirty-one thousand, two hundred fifty".